New moon dates 2099
- 2099: 12 × new moon — 21 January 2099, 20 February 2099, 22 March 2099, 20 April 2099, 20 May 2099, 18 June 2099, 18 July 2099, 16 August 2099, 14 September 2099, 14 October 2099, 12 November 2099, 12 December 2099.
- Next: 21 January 2099.
New moon dates 2099
| Date | Time (UTC) | |
|---|---|---|
| Wed 21 Jan | 09:09 | next |
| Fri 20 Feb | 04:07 | |
| Sun 22 Mar | 22:48 | |
| Mon 20 Apr | 15:31 | |
| Wed 20 May | 05:18 | |
| Thu 18 Jun | 16:12 | |
| Sat 18 Jul | 01:02 | |
| Sun 16 Aug | 08:56 | |
| Mon 14 Sep | 16:52 | |
| Wed 14 Oct | 01:34 | |
| Thu 12 Nov | 11:31 | |
| Sat 12 Dec | 23:11 |
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.