Dark Time for 40°N-75°W (nominally Philadelphia, PA) 1st Quarter: December 04, 2019, 01:58 EST Full Moon: December 12, 2019, 00:12 EST ----------------------------------------------------------------- EST Sun PM Astro Moon AM Astro Dark Set Twilight Set Twilight Time Night of... h m h m h m h m h m ----------------- ----- ----- ----- ----- ----- 2019 Dec 01 (Sun) 16:35 18:12 21:25 05:27 8:02 2019 Dec 02 (Mon) 16:35 18:11 22:24 05:28 7:04 2019 Dec 03 (Tue) 16:35 18:11 23:23 05:29 6:06 2019 Dec 04 (Wed) 16:35 18:11 00:21 05:30 5:09 2019 Dec 05 (Thu) 16:35 18:11 01:19 05:30 4:11 2019 Dec 06 (Fri) 16:35 18:11 02:17 05:31 3:14 2019 Dec 07 (Sat) 16:35 18:11 03:16 05:32 2:16 ----------------------------------------------------------------- Data generated with the U.S. Naval Observatory's MICA 2.2.2 software. Note: Dark time is calculated as the difference between the end of evening (PM) astronomical twilight, or moonset, whichever is later, until morning (AM) twilight. Moonrises after midnight are for the following morning. The days listed are for the "night of" beginning on the listed date, e.g., Dec 01 (Sun) is the night of Dec 01/02 (Sun/Mon). "AM Astro Twilight" is for the following morning.