New moon dates 1917
- 1917: 12 × new moon — 23 January 1917, 21 February 1917, 23 March 1917, 21 April 1917, 21 May 1917, 19 June 1917, 19 July 1917, 17 August 1917, 16 September 1917, 16 October 1917, 14 November 1917, 14 December 1917.
New moon dates 1917
| Date | Time (UTC) | |
|---|---|---|
| Tue 23 Jan | 07:38 | passed |
| Wed 21 Feb | 18:07 | passed |
| Fri 23 Mar | 04:03 | passed |
| Sat 21 Apr | 14:00 | passed |
| Mon 21 May | 00:45 | passed |
| Tue 19 Jun | 13:01 | passed |
| Thu 19 Jul | 02:58 | passed |
| Fri 17 Aug | 18:19 | passed |
| Sun 16 Sep | 10:26 | passed |
| Tue 16 Oct | 02:39 | passed |
| Wed 14 Nov | 18:27 | passed |
| Fri 14 Dec | 09:16 | passed |
Questions people ask
What is a moon day?
A moon day counts the days since the last new moon: the first moon day starts at the new moon, the fifteenth around the full moon. The count on this page is the whole number of days since the last new moon plus one.
Is the moon waxing or waning?
Waxing means the lit part is growing (from new moon to full moon); waning means it is shrinking (from full moon to new moon). In the northern hemisphere a waxing moon is lit on the right.
How are the phase times calculated?
With the algorithms published by Jean Meeus in Astronomical Algorithms (1998), including the periodic terms, which give the phase instants to about one minute.