New moon dates 1921
- 1921: 13 × new moon — 9 January 1921, 8 February 1921, 9 March 1921, 8 April 1921, 7 May 1921, 6 June 1921, 5 July 1921, 3 August 1921, 2 September 1921, 1 October 1921, 31 October 1921, 29 November 1921, 29 December 1921.
New moon dates 1921
| Date | Time (UTC) | |
|---|---|---|
| Sun 9 Jan | 05:25 | passed |
| Tue 8 Feb | 00:35 | passed |
| Wed 9 Mar | 18:08 | passed |
| Fri 8 Apr | 09:04 | passed |
| Sat 7 May | 21:00 | passed |
| Mon 6 Jun | 06:13 | passed |
| Tue 5 Jul | 13:35 | passed |
| Wed 3 Aug | 20:16 | passed |
| Fri 2 Sep | 03:31 | passed |
| Sat 1 Oct | 12:25 | passed |
| Mon 31 Oct | 23:37 | passed |
| Tue 29 Nov | 13:24 | passed |
| Thu 29 Dec | 05:38 | 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.