Amavasya (new moon) dates in Buenos Aires, 2031
Buenos Aires, Argentina · -34.60°, -58.38° · America/Argentina/Buenos Aires
Written and reviewed by The Kriya Yogi · Updated 5 October 2026
In 2031, Buenos Aires has 12 Amavasya dates, from Wed, Jan 22 to Sun, Dec 14. 7 match the Indian date, 5 fall a day earlier. The new-moon lunar day, traditionally associated with remembrance of ancestors and quiet practice.
| Date | Fortnight | Tithi window (local) | Sunrise | Details | vs India |
|---|---|---|---|---|---|
| Wed, Jan 22 | Amavasya | Wed, Jan 22, 4:58 AM – Thu, Jan 23, 1:32 AM | 6:04 AM | New moon at Thu, Jan 23, 1:32 AM | 1 day earlier |
| Fri, Feb 21 | Amavasya | Thu, Feb 20, 3:26 PM – Fri, Feb 21, 12:50 PM | 6:34 AM | New moon at Fri, Feb 21, 12:50 PM | Same |
| Sat, Mar 22 | Amavasya | Sat, Mar 22, 2:10 AM – Sun, Mar 23, 12:52 AM | 6:59 AM | New moon at Sun, Mar 23, 12:52 AM | 1 day earlier |
| Mon, Apr 21 | Amavasya | Sun, Apr 20, 1:47 PM – Mon, Apr 21, 2:00 PM | 7:22 AM | New moon at Mon, Apr 21, 2:00 PM | Same |
| Tue, May 20 | Amavasya | Tue, May 20, 2:46 AM – Wed, May 21, 4:19 AM | 7:44 AM | New moon at Wed, May 21, 4:19 AM | 1 day earlier |
| Thu, Jun 19 | Amavasya | Wed, Jun 18, 5:05 PM – Thu, Jun 19, 7:26 PM | 8:01 AM | New moon at Thu, Jun 19, 7:26 PM | Same |
| Sat, Jul 19 | Amavasya | Fri, Jul 18, 8:15 AM – Sat, Jul 19, 10:42 AM | 7:57 AM | New moon at Sat, Jul 19, 10:42 AM | Same |
| Sun, Aug 17 | Amavasya | Sat, Aug 16, 11:41 PM – Mon, Aug 18, 1:34 AM | 7:33 AM | New moon at Mon, Aug 18, 1:34 AM | 1 day earlier |
| Tue, Sep 16 | Amavasya | Mon, Sep 15, 2:55 PM – Tue, Sep 16, 3:49 PM | 6:53 AM | New moon at Tue, Sep 16, 3:49 PM | Same |
| Wed, Oct 15 | Amavasya | Wed, Oct 15, 5:46 AM – Thu, Oct 16, 5:22 AM | 6:13 AM | New moon at Thu, Oct 16, 5:22 AM | 1 day earlier |
| Fri, Nov 14 | Amavasya | Thu, Nov 13, 7:58 PM – Fri, Nov 14, 6:12 PM | 5:42 AM | New moon at Fri, Nov 14, 6:12 PM | Same |
| Sun, Dec 14 | Amavasya | Sat, Dec 13, 9:06 AM – Sun, Dec 14, 6:09 AM | 5:35 AM | New moon at Sun, Dec 14, 6:09 AM | Same |
What Amavasya is and how it is kept: the Amavasya 2031 guide.
Amavasya in Buenos Aires: questions
+ How many Amavasya days are there in 2031 in Buenos Aires?
12, computed for Buenos Aires's coordinates and the America/Argentina/Buenos Aires time zone. The first falls on Wed, Jan 22 and the last on Sun, Dec 14.
+ Are Buenos Aires 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 Buenos Aires. In 2031, 7 of 12 dates match the Indian (Ujjain) date, 5 fall a day earlier and 0 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. No entry this year needed a flag. 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.