Amavasya (new moon) dates in Tokyo, 2031
Tokyo, Japan · 35.68°, 139.65° · Asia/Tokyo
Written and reviewed by The Kriya Yogi · Updated 5 October 2026
In 2031, Tokyo has 12 Amavasya dates, from Thu, Jan 23 to Sun, Dec 14. 11 match the Indian date, 1 fall a day later. The new-moon lunar day, traditionally associated with remembrance of ancestors and quiet practice.
| Date | Fortnight | Tithi window (local) | Sunrise | Details | vs India |
|---|---|---|---|---|---|
| Thu, Jan 23 | Amavasya | Wed, Jan 22, 4:58 PM – Thu, Jan 23, 1:32 PM | 6:49 AM | New moon at Thu, Jan 23, 1:32 PM | Same |
| Fri, Feb 21 | Amavasya | Fri, Feb 21, 3:26 AM – Sat, Feb 22, 12:50 AM | 6:24 AM | New moon at Sat, Feb 22, 12:50 AM | Same |
| Sun, Mar 23 | Amavasya | Sat, Mar 22, 2:10 PM – Sun, Mar 23, 12:52 PM | 5:43 AM | New moon at Sun, Mar 23, 12:52 PM | Same |
| Mon, Apr 21 | Amavasya | Mon, Apr 21, 1:47 AM – Tue, Apr 22, 2:00 AM | 5:03 AM | New moon at Tue, Apr 22, 2:00 AM | Same |
| Wed, May 21 | Amavasya | Tue, May 20, 2:46 PM – Wed, May 21, 4:19 PM | 4:34 AM | New moon at Wed, May 21, 4:19 PM | Same |
| Fri, Jun 20 | Amavasya | Thu, Jun 19, 5:05 AM – Fri, Jun 20, 7:26 AM | 4:26 AM | New moon at Fri, Jun 20, 7:26 AM | 1 day later |
| Sat, Jul 19 | Amavasya | Fri, Jul 18, 8:15 PM – Sat, Jul 19, 10:42 PM | 4:40 AM | New moon at Sat, Jul 19, 10:42 PM | Same |
| Mon, Aug 18 | Amavasya | Sun, Aug 17, 11:41 AM – Mon, Aug 18, 1:34 PM | 5:03 AM | New moon at Mon, Aug 18, 1:34 PM | Same |
| Tue, Sep 16 | Amavasya | Tue, Sep 16, 2:55 AM – Wed, Sep 17, 3:49 AM | 5:25 AM | New moon at Wed, Sep 17, 3:49 AM | Same |
| Thu, Oct 16 | Amavasya | Wed, Oct 15, 5:46 PM – Thu, Oct 16, 5:22 PM | 5:48 AM | New moon at Thu, Oct 16, 5:22 PM | Same |
| Fri, Nov 14 | Amavasya | Fri, Nov 14, 7:58 AM – Sat, Nov 15, 6:12 AM | 6:16 AM | New moon at Sat, Nov 15, 6:12 AMTithi begins and ends between two sunrises | Same |
| Sun, Dec 14 | Amavasya | Sat, Dec 13, 9:06 PM – Sun, Dec 14, 6:09 PM | 6:43 AM | New moon at Sun, Dec 14, 6:09 PM | Same |
What Amavasya is and how it is kept: the Amavasya 2031 guide.
Amavasya in Tokyo: questions
+ How many Amavasya days are there in 2031 in Tokyo?
12, computed for Tokyo's coordinates and the Asia/Tokyo time zone. The first falls on Thu, Jan 23 and the last on Sun, Dec 14.
+ Are Tokyo Amavasya dates the same as in India?
Not always. A tithi starts at the same instant everywhere, but the sunrise that decides the day happens at a different moment in Tokyo. In 2031, 11 of 12 dates match the Indian (Ujjain) date, 0 fall a day earlier and 1 a day later.
+ How is the date decided?
This calendar uses the local day on which the Amavasya tithi is in force at sunrise. The exact new-moon instant is shown alongside. 1 of this year's 12 entries for Tokyo are flagged because of that. Local temples may follow a particular sampradaya's rule, so check with them for ritual purposes.
+ How accurate are these times?
Times come from truncated astronomical series and should fall within a few minutes of a full ephemeris. Near a boundary a published panchanga may assign a different day. They are for planning practice, not for precise ritual muhurta.