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May 2027

31 days · 20 working days · ISO weeks 17–22

Calendar grid for 5/2027, weeks starting Sun
ISO week	Sun	Mon	Tue	Wed	Thu	Fri	Sat
17	25	26	27	28	29	30	1Beltane
18	2Orthodox Easter	3	4	5Cinco de Mayo	6Ascension Day	7	8
19	9Mother's Day	10	11	12	13	14	15Day of Arafah
20	16Eid al-Adha	17	18	19	20	21	22
21	23	24	25Lag BaOmer	26	27	28	29
22	30	31Memorial Day	1	2	3	4	5

Federal holidays

Sat, May 1 — Beltane
Sun, May 2 — Orthodox Easter
Wed, May 5 — Cinco de Mayo
Thu, May 6 — Ascension Day
Sun, May 9 — Mother's Day
Sat, May 15 — Day of Arafah
Sun, May 16 — Pentecost
Sun, May 16 — Eid al-Adha
Tue, May 25 — Lag BaOmer
Mon, May 31 — Memorial Day

Moon phases

Thu, May 6 — New Moon
Thu, May 13 — First Quarter
Thu, May 20 — Full Moon
Fri, May 28 — Last Quarter

datealmanac.com · Week numbers follow ISO 8601