Dark Time for 40°N-75°W (nominally Philadelphia, PA)

 Full Moon: March 09, 2020, 13:48 EDT
  New Moon: March 24, 2020, 05:28 EDT

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E. Daylight Time    Sun      PM Astro   Moon     AM Astro    Dark    Moon
                    Set      Twilight   Rise     Twilight    Time    Set 
Night of...         h  m      h  m      h  m      h  m       h  m    h  m
-----------------   -----     -----     -----     -----     -----    -----
2019 Mar 08 (Sun)   19:00     20:30     17:49     05:50      -:--    07:37
2019 Mar 09 (Mon)   19:01     20:31     19:06     05:49      -:--    08:11

2019 Mar 10 (Tue)   19:02     20:32     20:23     05:47      -:--    08:44
2019 Mar 11 (Wed)   19:03     20:33     21:38     05:46      1:05

2019 Mar 12 (Thu)   19:04     20:35     22:53     05:44      2:18
2019 Mar 13 (Fri)   19:05     20:36     00:05     05:42      3:29

2019 Mar 14 (Sat)   19:06     20:37     01:15     05:40      4:38
2019 Mar 15 (Sun)   19:07     20:38     02:21     05:39      5:43

2019 Mar 16 (Mon)   19:08     20:39     03:20     05:37      6:41
2019 Mar 17 (Tue)   19:10     20:40     04:12     05:35      7:32

2019 Mar 18 (Wed)   19:11     20:41     04:57     05:34      8:53
2019 Mar 19 (Thu)   19:12     20:42     05:35     05:32      8:50

2019 Mar 20 (Fri)   19:13     20:44     06:07     05:30      8:46
2019 Mar 21 (Sat)   19:14     20:45     06:36     05:28      8:43 
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Data generated with the U.S. Naval Observatory's MICA 2.2.2 software.

Note: Dark time is calculated as the period between evening and morning twilight when
there's no moon in the sky (the moon's phase is not considered).

The days listed are for the "night of" beginning on the listed date, e.g., Mar 8 (Sun)
is the night of Mar 8/9 (Sun/Mon). Moonrise or Moonset after midnigtht, or AM Astro
Twilight, is for the subsequent morning (e.g., Monday morning for Sunday night).