Dates and Times of Seasons 1995 - 2025

1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
2021 2022 2023 2024 2025

    Eastern Time * UTC **
1995      
  Vernal Equinox 3/20/95 21:14 3/21/95 2:14
  First Third of Spring 4/20/95 19:20 4/21/95 0:20
  Mid-Spring 5/6/95 7:24 5/6/95 11:24
  Second Third of Spring 5/21/95 18:27 5/21/95 22:27
  Summer Solstice 6/21/95 16:34 6/21/95 20:34
  First Third of Summer 7/22/95 21:47 7/23/95 1:47
  Mid-Summer 8/7/95 12:23 8/7/95 16:23
  Second Third of Summer 8/23/95 3:00 8/23/95 7:00
  Autumnal Equinox 9/23/95 8:13 9/23/95 12:13
  First Third of Autumn 10/23/95 6:54 10/23/95 10:54
  Mid-Autumn 11/7/95 5:15 11/7/95 10:15
  Second Third of Autumn 11/22/95 4:35 11/22/95 9:35
  Winter Solstice 12/22/95 3:17 12/22/95 8:17
       
1996   Eastern Time UTC
  First Third of Winter 1/20/96 19:12 1/21/96 0:12
  Mid-Winter 2/4/96 15:10 2/4/96 20:10
  Second Third of Winter 2/19/96 11:07 2/19/96 16:07
  Vernal Equinox 3/20/96 3:03 3/20/96 8:03
  First Third of Spring 4/20/96 1:10 4/20/96 6:10
  Mid-Spring 5/5/96 13:13 5/5/96 17:13
  Second Third of Spring 5/21/96 0:17 5/21/96 4:17
  Summer Solstice 6/20/96 22:24 6/21/96 2:24
  First Third of Summer 7/22/96 3:36 7/22/96 7:36
  Mid-Summer 8/6/96 18:12 8/6/96 22:12
  Second Third of Summer 8/22/96 8:48 8/22/96 12:48
  Autumnal Equinox 9/22/96 14:00 9/22/96 18:00
  First Third of Autumn 10/22/96 12:42 10/22/96 16:42
  Mid-Autumn 11/6/96 11:03 11/6/96 16:03
  Second Third of Autumn 11/21/96 10:24 11/21/96 15:24
  Winter Solstice 12/21/96 9:06 12/21/96 14:06
       
1997   Eastern Time UTC
  First Third of Winter 1/20/97 1:02 1/20/97 6:02
  Mid-Winter 2/3/97 21:00 2/4/97 2:00
  Second Third of Winter 2/18/97 16:58 2/18/97 21:58
  Vernal Equinox 3/20/97 8:55 3/20/97 13:55
  First Third of Spring 4/20/97 7:03 4/20/97 12:03
  Mid-Spring 5/5/97 19:07 5/5/97 23:07
  Second Third of Spring 5/21/97 6:11 5/21/97 10:11
  Summer Solstice 6/21/97 4:20 6/21/97 8:20
  First Third of Summer 7/22/97 9:32 7/22/97 13:32
  Mid-Summer 8/7/97 0:08 8/7/97 4:08
  Second Third of Summer 8/22/97 14:44 8/22/97 18:44
  Autumnal Equinox 9/22/97 19:56 9/22/97 23:56
  First Third of Autumn 10/22/97 18:39 10/22/97 22:39
  Mid-Autumn 11/6/97 17:01 11/6/97 22:01
  Second Third of Autumn 11/21/97 16:23 11/21/97 21:23
  Winter Solstice 12/21/97 15:07 12/21/97 20:07
       
1998   Eastern Time UTC
  First Third of Winter 1/20/98 7:03 1/20/98 12:03
  Mid-Winter 2/4/98 3:01 2/4/98 8:01
  Second Third of Winter 2/18/98 22:59 2/19/98 3:59
  Vernal Equinox 3/20/98 14:55 3/20/98 19:55
  First Third of Spring 4/20/98 12:57 4/20/98 17:57
  Mid-Spring 5/6/98 0:59 5/6/98 4:59
  Second Third of Spring 5/21/98 12:00 5/21/98 16:00
  Summer Solstice 6/21/98 10:03 6/21/98 14:03
  First Third of Summer 7/22/98 15:14 7/22/98 19:14
  Mid-Summer 8/7/98 5:50 8/7/98 9:50
  Second Third of Summer 8/22/98 20:25 8/23/98 0:25
  Autumnal Equinox 9/23/98 1:37 9/23/98 5:37
  First Third of Autumn 10/23/98 0:23 10/23/98 4:23
  Mid-Autumn 11/6/98 22:46 11/7/98 3:46
  Second Third of Autumn 11/21/98 22:09 11/22/98 3:09
  Winter Solstice 12/21/98 20:56 12/22/98 1:56
       
1999   Eastern Time UTC
  First Third of Winter 1/20/99 12:52 1/20/99 17:52
  Mid-Winter 2/4/99 8:51 2/4/99 13:51
  Second Third of Winter 2/19/99 4:49 2/19/99 9:49
  Vernal Equinox 3/20/99 20:46 3/21/99 1:46
  First Third of Spring 4/20/99 18:47 4/20/99 23:47
  Mid-Spring 5/6/99 6:47 5/6/99 10:47
  Second Third of Spring 5/21/99 17:48 5/21/99 21:48
  Summer Solstice 6/21/99 15:49 6/21/99 19:49
  First Third of Summer 7/22/99 21:03 7/23/99 1:03
  Mid-Summer 8/7/99 11:40 8/7/99 15:40
  Second Third of Summer 8/23/99 2:17 8/23/99 6:17
  Autumnal Equinox 9/23/99 7:31 9/23/99 11:31
  First Third of Autumn 10/23/99 6:15 10/23/99 10:15
  Mid-Autumn 11/7/99 4:37 11/7/99 9:37
  Second Third of Autumn 11/22/99 3:59 11/22/99 8:59
  Winter Solstice 12/22/99 2:44 12/22/99 7:44
       
2000   Eastern Time UTC
  First Third of Winter 1/20/00 18:41 1/20/00 23:41
  Mid-Winter 2/4/00 14:39 2/4/00 19:39
  Second Third of Winter 2/19/00 10:38 2/19/00 15:38
  Vernal Equinox 3/20/00 2:35 3/20/00 7:35
  First Third of Spring 4/20/00 0:39 4/20/00 5:39
  Mid-Spring 5/5/00 12:41 5/5/00 16:41
  Second Third of Spring 5/20/00 23:43 5/21/00 3:43
  Summer Solstice 6/20/00 21:48 6/21/00 1:48
  First Third of Summer 7/22/00 3:01 7/22/00 7:01
  Mid-Summer 8/6/00 17:37 8/6/00 21:37
  Second Third of Summer 8/22/00 8:14 8/22/00 12:14
  Autumnal Equinox 9/22/00 13:27 9/22/00 17:27
  First Third of Autumn 10/22/00 12:10 10/22/00 16:10
  Mid-Autumn 11/6/00 10:32 11/6/00 15:32
  Second Third of Autumn 11/21/00 9:53 11/21/00 14:53
  Winter Solstice 12/21/00 8:37 12/21/00 13:37
2001   Eastern Time UTC
  First Third of Winter 1/20/01 0:35 1/20/01 5:35
  Mid-Winter 2/3/01 20:34 2/4/01 1:34
  Second Third of Winter 2/18/01 16:33 2/18/01 21:33
  Vernal Equinox 3/20/01 8:31 3/20/01 13:31
  First Third of Spring 4/20/01 6:33 4/20/01 11:33
  Mid-Spring 5/5/01 18:34 5/5/01 22:34
  Second Third of Spring 5/21/01 5:35 5/21/01 9:35
  Summer Solstice 6/21/01 3:38 6/21/01 7:38
  First Third of Summer 7/22/01 8:47 7/22/01 12:47
  Mid-Summer 8/6/01 23:21 8/7/01 3:21
  Second Third of Summer 8/22/01 13:56 8/22/01 17:56
  Autumnal Equinox 9/22/01 19:05 9/22/01 23:05
  First Third of Autumn 10/22/01 17:50 10/22/01 21:50
  Mid-Autumn 11/6/01 16:13 11/6/01 21:13
  Second Third of Autumn 11/21/01 15:36 11/21/01 20:36
  Winter Solstice 12/21/01 14:22 12/21/01 19:22
       
2002   Eastern Time UTC
  First Third of Winter 1/20/02 6:20 1/20/02 11:20
  Mid-Winter 2/4/02 2:19 2/4/02 7:19
  Second Third of Winter 2/18/02 22:18 2/19/02 3:18
  Vernal Equinox 3/20/02 14:16 3/20/02 19:16
  First Third of Spring 4/20/02 12:18 4/20/02 17:18
  Mid-Spring 5/6/02 0:20 5/6/02 4:20
  Second Third of Spring 5/21/02 11:21 5/21/02 15:21
  Summer Solstice 6/21/02 9:24 6/21/02 13:24
  First Third of Summer 7/22/02 14:34 7/22/02 18:34
  Mid-Summer 8/7/02 5:10 8/7/02 9:10
  Second Third of Summer 8/22/02 19:45 8/22/02 23:45
  Autumnal Equinox 9/23/02 0:56 9/23/02 4:56
  First Third of Autumn 10/22/02 23:42 10/23/02 3:42
  Mid-Autumn 11/6/02 22:05 11/7/02 3:05
  Second Third of Autumn 11/21/02 21:28 11/22/02 2:28
  Winter Solstice 12/21/02 20:15 12/22/02 1:15
       
2003   Eastern Time UTC
  First Third of Winter 1/20/03 12:10 1/20/03 17:10
  Mid-Winter 2/4/03 8:07 2/4/03 13:07
  Second Third of Winter 2/19/03 4:05 2/19/03 9:05
  Vernal Equinox 3/20/03 20:00 3/21/03 1:00
  First Third of Spring 4/20/03 18:03 4/20/03 23:03
  Mid-Spring 5/6/03 6:05 5/6/03 10:05
  Second Third of Spring 5/21/03 17:06 5/21/03 21:06
  Summer Solstice 6/21/03 15:10 6/21/03 19:10
  First Third of Summer 7/22/03 20:22 7/23/03 0:22
  Mid-Summer 8/7/03 10:58 8/7/03 14:58
  Second Third of Summer 8/23/03 1:34 8/23/03 5:34
  Autumnal Equinox 9/23/03 6:47 9/23/03 10:47
  First Third of Autumn 10/23/03 5:32 10/23/03 9:32
  Mid-Autumn 11/7/03 3:55 11/7/03 8:55
  Second Third of Autumn 11/22/03 3:18 11/22/03 8:18
  Winter Solstice 12/22/03 2:04 12/22/03 7:04
       
2004   Eastern Time UTC
  First Third of Winter 1/20/04 17:59 1/20/04 22:59
  Mid-Winter 2/4/04 13:56 2/4/04 18:56
  Second Third of Winter 2/19/04 9:54 2/19/04 14:54
  Vernal Equinox 3/20/04 1:49 3/20/04 6:49
  First Third of Spring 4/19/04 23:51 4/20/04 4:51
  Mid-Spring 5/5/04 11:53 5/5/04 15:53
  Second Third of Spring 5/20/04 22:54 5/21/04 2:54
  Summer Solstice 6/20/04 20:57 6/21/04 0:57
  First Third of Summer 7/22/04 2:08 7/22/04 6:08
  Mid-Summer 8/6/04 16:43 8/6/04 20:43
  Second Third of Summer 8/22/04 7:19 8/22/04 11:19
  Autumnal Equinox 9/22/04 12:30 9/22/04 16:30
  First Third of Autumn 10/22/04 11:14 10/22/04 15:14
  Mid-Autumn 11/6/04 9:36 11/6/04 14:36
  Second Third of Autumn 11/21/04 8:58 11/21/04 13:58
  Winter Solstice 12/21/04 7:42 12/21/04 12:42
       
2005   Eastern Time UTC
  First Third of Winter 1/19/05 23:39 1/20/05 4:39
  Mid-Winter 2/3/05 19:38 2/4/05 0:38
  Second Third of Winter 2/18/05 15:36 2/18/05 20:36
  Vernal Equinox 3/20/05 7:34 3/20/05 12:34
  First Third of Spring 4/20/05 5:38 4/20/05 10:38
  Mid-Spring 5/5/05 17:40 5/5/05 21:40
  Second Third of Spring 5/21/05 4:42 5/21/05 8:42
  Summer Solstice 6/21/05 2:46 6/21/05 6:46
  First Third of Summer 7/22/05 7:58 7/22/05 11:58
  Mid-Summer 8/6/05 22:34 8/7/05 2:34
  Second Third of Summer 8/22/05 13:10 8/22/05 17:10
  Autumnal Equinox 9/22/05 18:23 9/22/05 22:23
  First Third of Autumn 10/22/05 17:07 10/22/05 21:07
  Mid-Autumn 11/6/05 15:29 11/6/05 20:29
  Second Third of Autumn 11/21/05 14:51 11/21/05 19:51
  Winter Solstice 12/21/05 13:35 12/21/05 18:35
2006   Eastern Time UTC
  First Third of Winter 1/20/06 5:32 1/20/06 10:32
  Mid-Winter 2/4/06 1:30 2/4/06 6:30
  Second Third of Winter 2/18/06 21:29 2/19/06 2:29
  Vernal Equinox 3/20/06 13:26 3/20/06 18:26
  First Third of Spring 4/20/06 12:26 4/20/06 16:26
  Mid-Spring 5/5/06 23:26 5/6/06 3:26
  Second Third of Spring 5/21/06 10:26 5/21/06 14:26
  Summer Solstice 6/21/06 8:26 6/21/06 12:26
  First Third of Summer 7/22/06 13:38 7/22/06 17:38
  Mid-Summer 8/7/06 4:14 8/7/06 8:14
  Second Third of Summer 8/22/06 18:50 8/22/06 22:50
  Autumnal Equinox 9/23/06 0:03 9/23/06 4:03
  First Third of Autumn 10/22/06 22:49 10/23/06 2:49
  Mid-Autumn 11/6/06 21:12 11/7/06 2:12
  Second Third of Autumn 11/21/06 20:35 11/22/06 1:35
  Winter Solstice 12/21/06 19:22 12/22/06 0:22
       
2007   Eastern Time UTC
  First Third of Winter 1/20/07 11:17 1/20/07 16:17
  Mid-Winter 2/4/07 7:14 2/4/07 12:14
  Second Third of Winter 2/19/07 3:12 2/19/07 8:12
  Vernal Equinox 3/20/07 20:07† 3/21/07 0:07
  First Third of Spring 4/20/07 18:06 4/20/07 22:06
  Mid-Spring 5/6/07 5:06 5/6/07 9:06
  Second Third of Spring 5/21/07 16:06 5/21/07 20:06
  Summer Solstice 6/21/07 14:06 6/21/07 18:06
  First Third of Summer 7/22/07 19:21 7/22/07 23:21
  Mid-Summer 8/7/07 9:58 8/7/07 13:58
  Second Third of Summer 8/23/07 0:36 8/23/07 4:36
  Autumnal Equinox 9/23/07 5:51 9/23/07 9:51
  First Third of Autumn 10/23/07 4:36 10/23/07 8:36
  Mid-Autumn 11/7/07 2:59 11/7/07 7:59
  Second Third of Autumn 11/22/07 2:22 11/22/07 7:22
  Winter Solstice 12/22/07 1:08 12/22/07 6:08
       
2008   Eastern Time UTC
  First Third of Winter 1/20/08 17:01 1/20/08 22:01
  Mid-Winter 2/4/08 12:58 2/4/08 17:58
  Second Third of Winter 2/19/08 8:54 2/19/08 13:54
  Vernal Equinox 3/20/08 1:48 3/20/08 5:48
  First Third of Spring 4/19/08 23:51 4/20/08 3:51
  Mid-Spring 5/5/08 10:53 5/5/08 14:53
  Second Third of Spring 5/20/08 21:55 5/21/08 1:55
  Summer Solstice 6/20/08 19:59 6/20/08 23:59
  First Third of Summer 7/22/08 1:14 7/22/08 5:14
  Mid-Summer 8/6/08 15:51 8/6/08 19:51
  Second Third of Summer 8/22/08 6:29 8/22/08 10:29
  Autumnal Equinox 9/22/08 11:44 9/22/08 15:44
  First Third of Autumn 10/22/08 10:30 10/22/08 14:30
  Mid-Autumn 11/6/08 8:54 11/6/08 13:54
  Second Third of Autumn 11/21/08 8:17 11/21/08 13:17
  Winter Solstice 12/21/08 7:04 12/21/08 12:04
       
2009   Eastern Time UTC
  First Third of Winter 1/19/09 22:57 1/20/09 3:57
  Mid-Winter 2/3/09 18:54 2/3/09 23:54
  Second Third of Winter 2/18/09 14:50 2/18/09 19:50
  Vernal Equinox 3/20/09 7:44 3/20/09 11:44
  First Third of Spring 4/20/09 5:44 4/20/09 9:44
  Mid-Spring 5/5/09 16:44 5/5/09 20:44
  Second Third of Spring 5/21/09 3:44 5/21/09 7:44
  Summer Solstice 6/21/09 1:45 6/21/09 5:45
  First Third of Summer 7/22/09 6:56 7/22/09 10:56
  Mid-Summer 8/6/09 21:31 8/7/09 1:31
  Second Third of Summer 8/22/09 12:07 8/22/09 16:07
  Autumnal Equinox 9/22/09 17:18 9/22/09 21:18
  First Third of Autumn 10/22/09 16:07 10/22/09 20:07
  Mid-Autumn 11/6/09 14:32 11/6/09 19:32
  Second Third of Autumn 11/21/09 13:57 11/21/09 18:57
  Winter Solstice 12/21/09 12:47 12/21/09 17:47
       
2010   Eastern Time UTC
  First Third of Winter 1/20/10 4:42 1/20/10 9:42
  Mid-Winter 2/4/10 0:39 2/4/10 5:39
  Second Third of Winter 2/18/10 20:37 2/19/10 1:37
  Vernal Equinox 3/20/10 13:32 3/20/10 17:32
  First Third of Spring 4/20/10 11:30 4/20/10 15:30
  Mid-Spring 5/5/10 22:30 5/6/10 2:30
  Second Third of Spring 5/21/10 9:29 5/21/10 13:29
  Summer Solstice 6/21/10 7:28 6/21/10 11:28
  First Third of Summer 7/22/10 12:41 7/22/10 16:41
  Mid-Summer 8/7/10 3:18 8/7/10 7:18
  Second Third of Summer 8/22/10 17:55 8/22/10 21:55
  Autumnal Equinox 9/22/10 23:09 9/23/10 3:09
  First Third of Autumn 10/22/10 21:58 10/23/10 1:58
  Mid-Autumn 11/6/10 21:23 11/7/10 1:23
  Second Third of Autumn 11/21/10 19:48 11/22/10 0:48
  Winter Solstice 12/21/10 18:38 12/21/10 23:38
       
2011   Eastern Time UTC
  First Third of Winter 1/20/11 10:32 1/20/11 15:32
  Mid-Winter 2/4/11 6:29 2/4/11 11:29
  Second Third of Winter 2/19/11 2:26 2/19/11 7:26
  Vernal Equinox 3/20/11 19:21 3/20/11 23:21
  First Third of Spring 4/20/11 17:19 4/20/11 21:19
  Mid-Spring 5/6/11 4:18 5/6/11 8:18
  Second Third of Spring 5/21/11 15:17 5/21/11 19:17
  Summer Solstice 6/21/11 13:16 6/21/11 17:16
  First Third of Summer 7/22/11 18:32 7/22/11 22:32
  Mid-Summer 8/7/11 9:10 8/7/11 13:10
  Second Third of Summer 8/22/11 23:48 8/23/11 3:48
  Autumnal Equinox 9/23/11 5:04 9/23/11 9:04
  First Third of Autumn 10/23/11 3:52 10/23/11 7:52
  Mid-Autumn 11/7/11 2:17 11/7/11 7:17
  Second Third of Autumn 11/22/11 1:41 11/22/11 6:41
  Winter Solstice 12/22/11 0:30 12/22/11 5:30
       
2012   Eastern Time UTC
  First Third of Winter 1/20/12 16:24 1/20/12 21:24
  Mid-Winter 2/4/12 12:22 2/4/12 17:22
  Second Third of Winter 2/19/12 8:19 2/19/12 13:19
  Vernal Equinox 3/20/12 1:14 3/20/12 5:14
  First Third of Spring 4/19/12 23:12 4/20/12 3:12
  Mid-Spring 5/5/12 10:11 5/5/12 14:11
  Second Third of Spring 5/20/12 21:10 5/21/12 1:10
  Summer Solstice 6/20/12 19:09 6/20/12 23:09
  First Third of Summer 7/22/12 0:22 7/22/12 4:22
  Mid-Summer 8/6/12 14:59 8/6/12 18:59
  Second Third of Summer 8/22/12 5:35 8/22/12 9:35
  Autumnal Equinox 9/22/12 10:49 9/22/12 14:49
  First Third of Autumn 10/22/12 9:36 10/22/12 13:36
  Mid-Autumn 11/6/12 8:00 11/6/12 13:00
  Second Third of Autumn 11/21/12 7:23 11/21/12 12:23
  Winter Solstice 12/21/12 6:11 12/21/12 11:11
       
2013   Eastern Time UTC
  First Third of Winter 1/19/13 22:08 1/20/13 3:08
  Mid-Winter 2/3/13 18:06 2/3/13 23:06
  Second Third of Winter 2/18/13 14:05 2/18/13 19:05
  Vernal Equinox 3/20/13 7:02 3/20/13 11:02
  First Third of Spring 4/20/13 5:02 4/20/13 9:02
  Mid-Spring 5/5/13 16:03 5/5/13 20:03
  Second Third of Spring 5/21/13 3:03 5/21/13 7:03
  Summer Solstice 6/21/13 1:04 6/21/13 5:04
  First Third of Summer 7/22/13 6:17 7/22/13 10:17
  Mid-Summer 8/6/13 20:54 8/7/13 0:54
  Second Third of Summer 8/22/13 11:30 8/22/13 15:30
  Autumnal Equinox 9/22/13 16:44 9/22/13 20:44
  First Third of Autumn 10/22/13 15:33 10/22/13 19:33
  Mid-Autumn 11/6/13 13:57 11/6/13 18:57
  Second Third of Autumn 11/21/13 13:22 11/21/13 18:22
  Winter Solstice 12/21/13 12:11 12/21/13 17:11
       
2014   Eastern Time UTC
  First Third of Winter 1/20/14 4:06 1/20/14 9:06
  Mid-Winter 2/4/14 0:04 2/4/14 5:04
  Second Third of Winter 2/18/14 20:01 2/19/14 1:01
  Vernal Equinox 3/20/14 12:57 3/20/14 16:57
  First Third of Spring 4/20/14 10:55 4/20/14 14:55
  Mid-Spring 5/5/14 21:54 5/6/14 1:54
  Second Third of Spring 5/21/14 8:53 5/21/14 12:53
  Summer Solstice 6/21/14 6:51 6/21/14 10:51
  First Third of Summer 7/22/14 12:03 7/22/14 16:03
  Mid-Summer 8/7/14 2:40 8/7/14 6:40
  Second Third of Summer 8/22/14 17:16 8/22/14 21:16
  Autumnal Equinox 9/22/14 22:29 9/23/14 2:29
  First Third of Autumn 10/22/14 21:20 10/23/14 1:20
  Mid-Autumn 11/6/14 19:46 11/7/14 0:46
  Second Third of Autumn 11/21/14 19:11 11/22/14 0:11
  Winter Solstice 12/21/14 18:03 12/21/14 23:03
       
2015   Eastern Time UTC
  First Third of Winter 1/20/15 9:57 1/20/15 14:57
  Mid-Winter 2/4/15 5:54 2/4/15 10:54
  Second Third of Winter 2/19/15 1:51 2/19/15 6:51
  Vernal Equinox 3/20/15 18:45 3/20/15 22:45
  First Third of Spring 4/20/15 16:42 4/20/15 20:42
  Mid-Spring 5/6/15 3:41 5/6/15 7:41
  Second Third of Spring 5/21/15 14:40 5/21/15 18:40
  Summer Solstice 6/21/15 12:38 6/21/15 16:38
  First Third of Summer 7/22/15 17:52 7/22/15 21:52
  Mid-Summer 8/7/15 8:29 8/7/15 12:29
  Second Third of Summer 8/22/15 23:06 8/23/15 3:06
  Autumnal Equinox 9/23/15 4:20 9/23/15 8:20
  First Third of Autumn 10/23/15 3:09 10/23/15 7:09
  Mid-Autumn 11/7/15 1:34 11/7/15 6:34
  Second Third of Autumn 11/22/15 0:58 11/22/15 5:58
  Winter Solstice 12/21/15 23:48 12/22/15 4:48
       
2016   Eastern Time UTC
  First Third of Winter 1/20/16 15:42 1/20/16 20:42
  Mid-Winter 2/4/16 11:39 2/4/16 16:39
  Second Third of Winter 2/19/16 7:36 2/19/16 12:36
  Vernal Equinox 3/20/16 0:30 3/20/16 4:30
  First Third of Spring 4/19/16 22:31 4/20/16 2:31
  Mid-Spring 5/5/16 9:32 5/5/16 13:32
  Second Third of Spring 5/20/16 20:32 5/21/16 0:32
  Summer Solstice 6/20/16 18:34 6/20/16 22:34
  First Third of Summer 7/21/16 23:49 7/22/16 3:49
  Mid-Summer 8/6/16 14:27 8/6/16 18:27
  Second Third of Summer 8/22/16 5:05 8/22/16 9:05
  Autumnal Equinox 9/22/16 10:21 9/22/16 14:21
  First Third of Autumn 10/22/16 9:08 10/22/16 13:08
  Mid-Autumn 11/6/16 7:32 11/6/16 12:32
  Second Third of Autumn 11/21/16 6:56 11/21/16 11:56
  Winter Solstice 12/21/16 5:44 12/21/16 10:44
       
2017   Eastern Time UTC
  First Third of Winter 1/19/17 21:38 1/20/17 2:38
  Mid-Winter 2/3/17 17:36 2/3/17 22:36
  Second Third of Winter 2/18/17 13:33 2/18/17 18:33
  Vernal Equinox 3/20/17 6:28 3/20/17 10:28
  First Third of Spring 4/20/17 4:26 4/20/17 8:26
  Mid-Spring 5/5/17 15:26 5/5/17 19:26
  Second Third of Spring 5/21/17 2:25 5/21/17 6:25
  Summer Solstice 6/21/17 0:24 6/21/17 4:24
  First Third of Summer 7/22/17 5:36 7/22/17 9:36
  Mid-Summer 8/6/17 20:13 8/7/17 0:13
  Second Third of Summer 8/22/17 10:49 8/22/17 14:49
  Autumnal Equinox 9/22/17 16:02 9/22/17 20:02
  First Third of Autumn 10/22/17 14:50 10/22/17 18:50
  Mid-Autumn 11/6/17 13:15 11/6/17 18:15
  Second Third of Autumn 11/21/17 12:39 11/21/17 17:39
  Winter Solstice 12/21/17 11:28 12/21/17 16:28
       
2018   Eastern Time UTC
  First Third of Winter 1/20/18 3:23 1/20/18 8:23
  Mid-Winter 2/3/18 23:21 2/4/18 4:21
  Second Third of Winter 2/18/18 19:19 2/19/18 0:19
  Vernal Equinox 3/20/18 12:15 3/20/18 16:15
  First Third of Spring 4/20/18 10:12 4/20/18 14:12
  Mid-Spring 5/5/18 21:11 5/6/18 1:11
  Second Third of Spring 5/21/18 8:09 5/21/18 12:09
  Summer Solstice 6/21/18 6:07 6/21/18 10:07
  First Third of Summer 7/22/18 11:22 7/22/18 15:22
  Mid-Summer 8/7/18 2:00 8/7/18 6:00
  Second Third of Summer 8/22/18 16:38 8/22/18 20:38
  Autumnal Equinox 9/22/18 21:54 9/23/18 1:54
  First Third of Autumn 10/22/18 20:43 10/23/18 0:43
  Mid-Autumn 11/6/18 19:08 11/7/18 0:08
  Second Third of Autumn 11/21/18 18:32 11/21/18 23:32
  Winter Solstice 12/21/18 17:22 12/21/18 22:22
       
2019   Eastern Time UTC
  First Third of Winter 1/20/19 9:14 1/20/19 14:14
  Mid-Winter 2/4/19 5:10 2/4/19 10:10
  Second Third of Winter 2/19/19 1:06 2/19/19 6:06
  Vernal Equinox 3/20/19 17:58 3/20/19 21:58
  First Third of Spring 4/20/19 15:56 4/20/19 19:56
  Mid-Spring 5/6/19 2:56 5/6/19 6:56
  Second Third of Spring 5/21/19 13:55 5/21/19 17:55
  Summer Solstice 6/21/19 11:54 6/21/19 15:54
  First Third of Summer 7/22/19 17:12 7/22/19 21:12
  Mid-Summer 8/7/19 7:52 8/7/19 11:52
  Second Third of Summer 8/22/19 22:31 8/23/19 2:31
  Autumnal Equinox 9/23/19 3:50 9/23/19 7:50
  First Third of Autumn 10/23/19 2:39 10/23/19 6:39
  Mid-Autumn 11/7/19 1:04 11/7/19 6:04
  Second Third of Autumn 11/22/19 0:29 11/22/19 5:29
  Winter Solstice 12/21/19 23:19 12/22/19 4:19
       
2020   Eastern Time UTC
  First Third of Winter 1/20/20 15:09 1/20/20 20:09
  Mid-Winter 2/4/20 11:04 2/4/20 16:04
  Second Third of Winter 2/19/20 6:59 2/19/20 11:59
  Vernal Equinox 3/19/20 23:49 3/20/20 3:49
  First Third of Spring 4/19/20 21:47 4/20/20 1:47
  Mid-Spring 5/5/20 8:46 5/5/20 12:46
  Second Third of Spring 5/20/20 19:45 5/20/20 23:45
  Summer Solstice 6/20/20 17:43 6/20/20 21:43
  First Third of Summer 7/21/20 22:58 7/22/20 2:58
  Mid-Summer 8/6/20 13:36 8/6/20 17:36
  Second Third of Summer 8/22/20 4:14 8/22/20 8:14
  Autumnal Equinox 9/22/20 9:30 9/22/20 13:30
  First Third of Autumn 10/22/20 8:20 10/22/20 12:20
  Mid-Autumn 11/6/20 6:46 11/6/20 11:46
  Second Third of Autumn 11/21/20 6:11 11/21/20 11:11
  Winter Solstice 12/21/20 5:02 12/21/20 10:02
       
2021   Eastern Time UTC
  First Third of Winter 01/19/21 10:51 01/19/21 15:51
  Mid-Winter 02/02/21 06:47 02/03/21 11:47
  Second Third of Winter 02/18/21 02:43 02/18/21 07:43
  Vernal Equinox 03/20/21 05:37 03/20/21 09:37
  First Third of Spring 04/19/21 17:58 04/19/21 21:58
  Mid-Spring 05/05/21 04:57 05/05/21 08:57
  Second Third of Spring 05/20/21 15:56 05/20/21 19:56
  Summer Solstice 06/20/21 23:32 06/21/21 03:32
  First Third of Summer 07/22/21 01:16 07/22/21 05:16
  Mid-Summer 08/06/21 15:54 08/06/21 19:54
  Second Third of Summer 08/22/21 06:32 08/22/21 10:32
  Autumnal Equinox 09/22/21 15:21 09/22/21 19:21
  First Third of Autumn 10/21/21 18:52 10/21/21 22:52
  Mid-Autumn 11/05/21 18:19 11/05/21 22:19
  Second Third of Autumn 11/20/21 16:45 11/20/21 21:45
  Winter Solstice 12/21/21 10:59 12/21/21 15:59
       
2022   Eastern Time UTC
  First Third of Winter 01/19/22 10:51 01/19/22 15:51
  Mid-Winter 02/03/22 06:47 02/03/22 11:47
  Second Third of Winter 02/18/22 02:42 02/18/22 07:42
  Vernal Equinox 03/20/22 11:33 03/20/22 15:33
  First Third of Spring 04/19/22 17:53 04/19/22 21:53
  Mid-Spring 05/05/22 04:50 05/05/22 08:50
  Second Third of Spring 05/20/22 15:47 05/20/22 19:47
  Summer Solstice 06/21/22 05:14 06/21/22 09:14
  First Third of Summer 07/22/22 01:16 07/22/22 05:16
  Mid-Summer 08/06/22 15:55 08/06/22 19:55
  Second Third of Summer 08/22/22 06:33 08/22/22 10:33
  Autumnal Equinox 09/22/22 21:04 09/23/22 01:04
  First Third of Autumn 10/22/22 18:54 10/22/22 22:54
  Mid-Autumn 11/06/22 17:22 11/06/22 22:22
  Second Third of Autumn 11/21/22 16:49 11/21/22 21:49
  Winter Solstice 12/21/22 16:48 12/21/22 21:48
       
2023   Eastern Time UTC
  First Third of Winter 01/19/23 10:52 01/19/23 15:52
  Mid-Winter 02/03/23 06:48 02/03/23 11:48
  Second Third of Winter 02/18/23 02:44 02/18/23 07:44
  Vernal Equinox 03/20/23 17:24 03/20/23 21:24
  First Third of Spring 04/19/23 17:51 04/19/23 21:51
  Mid-Spring 05/05/23 04:47 05/05/23 08:47
  Second Third of Spring 05/20/23 15:42 05/20/23 19:42
  Summer Solstice 06/21/23 10:58 06/21/23 14:58
  First Third of Summer 07/22/23 01:17 07/22/23 05:17
  Mid-Summer 08/06/23 15:56 08/06/23 19:56
  Second Third of Summer 08/22/23 06:34 08/22/23 10:34
  Autumnal Equinox 09/23/23 02:50 09/23/23 06:50
  First Third of Autumn 10/22/23 18:52 10/22/23 22:52
  Mid-Autumn 11/06/23 17:18 11/06/23 22:18
  Second Third of Autumn 11/21/23 16:44 11/21/23 21:44
  Winter Solstice 12/21/23 22:27 12/22/23 03:27
       
2024   Eastern Time UTC
  First Third of Winter 01/20/24 10:53 01/20/24 15:53
  Mid-Winter 02/04/24 06:49 02/04/24 11:49
  Second Third of Winter 02/19/24 02:46 02/19/24 07:46
  Vernal Equinox 03/19/24 23:06 03/20/24 03:06
  First Third of Spring 04/19/24 16:55 04/19/24 21:55
  Mid-Spring 05/05/24 03:52 05/05/24 08:52
  Second Third of Spring 05/20/24 14:50 05/20/24 19:50
  Summer Solstice 06/20/24 16:51 06/20/24 20:51
  First Third of Summer 07/21/24 00:17 07/21/24 05:17
  Mid-Summer 08/05/24 14:56 08/05/24 19:56
  Second Third of Summer 08/21/24 05:35 08/21/24 10:35
  Autumnal Equinox 09/22/24 07:44 09/22/24 12:44
  First Third of Autumn 10/21/24 17:52 10/21/24 22:52
  Mid-Autumn 11/05/24 17:18 11/05/24 22:18
  Second Third of Autumn 11/20/24 16:44 11/20/24 21:44
  Winter Solstice 12/21/24 04:21 12/21/24 09:21
       
2025   Eastern Time UTC
  First Third of Winter 01/19/25 10:53 01/19/25 15:53
  Mid-Winter 02/03/25 06:50 02/03/25 11:50
  Second Third of Winter 02/18/25 02:46 02/18/25 07:46
  Vernal Equinox 03/20/25 05:01 03/20/25 09:01
  First Third of Spring 04/19/25 17:53 04/19/25 21:53
  Mid-Spring 05/05/25 04:50 05/05/25 08:50
  Second Third of Spring 05/20/25 15:47 05/20/25 19:47
  Summer Solstice 06/20/25 22:42 06/21/25 02:42
  First Third of Summer 07/22/25 01:12 07/22/25 05:12
  Mid-Summer 08/06/25 15:48 08/06/25 19:48
  Second Third of Summer 08/22/25 06:24 08/22/25 10:24
  Autumnal Equinox 09/22/25 14:19 09/22/25 18:19
  First Third of Autumn 10/21/25 18:54 10/21/25 22:54
  Mid-Autumn 11/05/25 17:22 11/05/25 22:22
  Second Third of Autumn 11/20/25 16:49 11/20/25 21:49
  Winter Solstice 12/21/25 10:03 12/21/25 15:03
       

* The Eastern time zone readings are already adjusted for EDT or EST. Return.

**UTC is Coordinated Universal Time, the official time zone for the planet Earth. It's what scientists, among others, use. Return.

†As of 2007, Daylight Saving Time starts on the second Sunday in March at 2:00 AM and end on the First Sunday of November at 2:00 AM. This is part of the Energy Policy Act of 2005. This adds an extra month of Daylight Saving Time to the calendar. Return

Sources: The dates and times for the solstices and equinoxes are from the United States Naval Observatory. I put all of them into a spreadsheet and calculated the mid and third season boundaries. All equinox and solstice times are ± 1 minute, and all of my calculated times are ± 2 minutes due to rounding.

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