Time systems, calendar references, and timezone tools.

Yearly calendar

2025 Calendar with Week Numbers and Holidays

All twelve months of 2025 on one page, with Monday-first weeks, ISO week numbers, US federal holidays, full and new moons, and the daylight-saving changes for the US and Europe.

2025 month by month

Weeks run Monday to Sunday. The first column is the ISO 8601 week number. Hover or focus a marked date for details.

  • US federal holiday
  • Observed holiday (day off)
  • Full moon (UTC)
  • New moon (UTC)
  • Clocks change (US or UK/EU)
  • Today
January 2025
Wk MoTuWeThFrSaSu
1 1 New Year's Day 2 3 4 5
2 6 7 8 9 10 11 12
3 13 Full moon 22:26 UTC 14 15 16 17 18 19
4 20 Martin Luther King Jr. Day 21 22 23 24 25 26
5 27 28 29 New moon 12:35 UTC 30 31
February 2025
Wk MoTuWeThFrSaSu
5 1 2
6 3 4 5 6 7 8 9
7 10 11 12 Full moon 13:53 UTC 13 14 15 16
8 17 Presidents' Day 18 19 20 21 22 23
9 24 25 26 27 28 New moon 00:44 UTC
March 2025
Wk MoTuWeThFrSaSu
9 1 2
10 3 4 5 6 7 8 9 United States: clocks go forward (EST to EDT)
11 10 11 12 13 14 Full moon 06:54 UTC 15 16
12 17 18 19 20 21 22 23
13 24 25 26 27 28 29 New moon 10:57 UTC 30 UK and EU: clocks go forward (GMT to BST)
14 31
April 2025
Wk MoTuWeThFrSaSu
14 1 2 3 4 5 6
15 7 8 9 10 11 12 13 Full moon 00:22 UTC
16 14 15 16 17 18 19 20
17 21 22 23 24 25 26 27 New moon 19:31 UTC
18 28 29 30
May 2025
Wk MoTuWeThFrSaSu
18 1 2 3 4
19 5 6 7 8 9 10 11
20 12 Full moon 16:55 UTC 13 14 15 16 17 18
21 19 20 21 22 23 24 25
22 26 Memorial Day 27 New moon 03:02 UTC 28 29 30 31
June 2025
Wk MoTuWeThFrSaSu
22 1
23 2 3 4 5 6 7 8
24 9 10 11 Full moon 07:43 UTC 12 13 14 15
25 16 17 18 19 Juneteenth National Independence Day 20 21 22
26 23 24 25 New moon 10:31 UTC 26 27 28 29
27 30
July 2025
Wk MoTuWeThFrSaSu
27 1 2 3 4 Independence Day 5 6
28 7 8 9 10 Full moon 20:36 UTC 11 12 13
29 14 15 16 17 18 19 20
30 21 22 23 24 New moon 19:11 UTC 25 26 27
31 28 29 30 31
August 2025
Wk MoTuWeThFrSaSu
31 1 2 3
32 4 5 6 7 8 9 Full moon 07:54 UTC 10
33 11 12 13 14 15 16 17
34 18 19 20 21 22 23 New moon 06:06 UTC 24
35 25 26 27 28 29 30 31
September 2025
Wk MoTuWeThFrSaSu
36 1 Labor Day 2 3 4 5 6 7 Full moon 18:08 UTC
37 8 9 10 11 12 13 14
38 15 16 17 18 19 20 21 New moon 19:53 UTC
39 22 23 24 25 26 27 28
40 29 30
October 2025
Wk MoTuWeThFrSaSu
40 1 2 3 4 5
41 6 7 Full moon 03:47 UTC 8 9 10 11 12
42 13 Columbus Day 14 15 16 17 18 19
43 20 21 New moon 12:25 UTC 22 23 24 25 26 UK and EU: clocks go back (BST to GMT)
44 27 28 29 30 31
November 2025
Wk MoTuWeThFrSaSu
44 1 2 United States: clocks go back (EDT to EST)
45 3 4 5 Full moon 13:19 UTC 6 7 8 9
46 10 11 Veterans Day 12 13 14 15 16
47 17 18 19 20 New moon 06:47 UTC 21 22 23
48 24 25 26 27 Thanksgiving Day 28 29 30
December 2025
Wk MoTuWeThFrSaSu
49 1 2 3 4 Full moon 23:14 UTC 5 6 7
50 8 9 10 11 12 13 14
51 15 16 17 18 19 20 New moon 01:43 UTC 21
52 22 23 24 25 Christmas Day 26 27 28
1 29 30 31

Moon phase dates are given in UTC and can fall on the adjacent date in your time zone; a full moon at 00:22 UTC on April 13 is still the evening of April 12 in New York. Daylight-saving dates follow the rules currently in force for America/New_York and Europe/London.

2025 year facts

Fixed properties of the calendar year, independent of when you read this page.

Facts about the year 2025
Leap yearNo (next leap year: 2028)
Number of days365
ISO weeks52 (week 1 starts Monday, December 30, 2024)
January 1Wednesday (ISO week 1 of 2025)
December 31Wednesday (ISO week 1 of 2026)
Weekdays (Mon–Fri)261
Observed federal holidays on weekdays11
Federal working days250
Easter Sunday (Gregorian)Sunday, April 20, 2025
Friday the 13thJune
Full / new moons (UTC)12 / 12

US federal holidays in 2025

When a holiday falls on a Saturday, federal employees take the Friday before; when it falls on a Sunday, the Monday after.

US federal holidays in 2025 with observed dates
HolidayDateWeekdayObserved
New Year's Day January 1, 2025 Wednesday Same day
Martin Luther King Jr. Day January 20, 2025 Monday Same day
Presidents' Day February 17, 2025 Monday Same day
Memorial Day May 26, 2025 Monday Same day
Juneteenth National Independence Day June 19, 2025 Thursday Same day
Independence Day July 4, 2025 Friday Same day
Labor Day September 1, 2025 Monday Same day
Columbus Day October 13, 2025 Monday Same day
Veterans Day November 11, 2025 Tuesday Same day
Thanksgiving Day November 27, 2025 Thursday Same day
Christmas Day December 25, 2025 Thursday Same day

Full and new moons in 2025

Times are UTC, rounded to the minute, from Jean Meeus's lunar phase algorithm. See the moon phase page for tonight's moon.

Full and new moon dates in 2025, UTC
MonthFull moonNew moon
January Jan 13, 22:26 Jan 29, 12:35
February Feb 12, 13:53 Feb 28, 00:44
March Mar 14, 06:54 Mar 29, 10:57
April Apr 13, 00:22 Apr 27, 19:31
May May 12, 16:55 May 27, 03:02
June Jun 11, 07:43 Jun 25, 10:31
July Jul 10, 20:36 Jul 24, 19:11
August Aug 9, 07:54 Aug 23, 06:06
September Sep 7, 18:08 Sep 21, 19:53
October Oct 7, 03:47 Oct 21, 12:25
November Nov 5, 13:19 Nov 20, 06:47
December Dec 4, 23:14 Dec 20, 01:43

Daylight saving time changes in 2025

The US changes at 2:00 local time; the UK and EU change together at 01:00 UTC.

Clock changes in 2025 for New York and London
RegionChangeDateLocal timeOffset
United States (America/New_York) Forward 1 hour Sunday, March 9, 2025 02:00 EST (07:00 UTC) EST → EDT
United States (America/New_York) Back 1 hour Sunday, November 2, 2025 02:00 EDT (06:00 UTC) EDT → EST
UK and EU (Europe/London) Forward 1 hour Sunday, March 30, 2025 01:00 GMT (01:00 UTC) GMT → BST
UK and EU (Europe/London) Back 1 hour Sunday, October 26, 2025 02:00 BST (01:00 UTC) BST → GMT

What stands out in 2025

2025 begins on a Wednesday and ends on a Wednesday. It is a common year of 365 days; the next leap year is 2028, three years later. It has 52 ISO weeks. Week 1 begins on Monday, December 30, 2024. At the other end, December 31 already falls in week 1 of 2026, which matters for anyone filing reports by ISO week.

Counting Monday through Friday, 2025 has 261 weekdays. Eleven of them are observed US federal holidays, which leaves 250 federal working days. Every fixed-date federal holiday lands on a weekday this year, so no observed-date shifts are needed. Independence Day is a Friday, Thanksgiving is on November 27, and Christmas Day falls on a Thursday.

Western (Gregorian) Easter is on Sunday, April 20, toward the late end of its possible range of March 22 to April 25. There are twelve full moons and twelve new moons in 2025 by UTC date, one full moon per month, so there is no calendar-month blue moon. Friday the 13th occurs once, in June.

In the United States, clocks go forward on Sunday, March 9 and back on Sunday, November 2. The United Kingdom and the European Union change on Sunday, March 30 and Sunday, October 26. Between those dates the usual gap between New York and London shrinks by an hour: for 21 days in spring and 7 days in autumn the two cities are four hours apart instead of five, which is worth checking before booking transatlantic calls.

Reading the week numbers

The calendar uses ISO 8601 weeks, the convention common in Europe and in business reporting: weeks start on Monday, and week 1 is the week that contains the year's first Thursday (equivalently, the week containing January 4). A year therefore has 52 or 53 ISO weeks, and the first or last few days of January and December can belong to a neighboring week-year. In the United States, printed calendars usually start the week on Sunday and count January 1 as part of week 1, so a US week number can differ from the ISO one by a week. When a schedule says "week 14", confirm which system it means; the ISO vs US week comparison shows both side by side.

Printing the calendar

Use the print button or your browser's print command. The printed version leaves out the site header, navigation, and the reference tables, keeps each month whole, and lays the year out three months to a row; portrait orientation fits it on two pages. Holiday and moon symbols print in black, so the key above still applies on a monochrome printer.

2025 calendar questions

How many weeks are in 2025?

2025 has 52 ISO 8601 weeks. Week 1 begins on Monday, December 30, 2024, and week 52 ends on Sunday, December 28, 2025. Counted as plain seven-day blocks, 2025 is 52 weeks and 1 day.

Is 2025 a leap year?

No. 2025 is not divisible by 4, so it has 365 days and February ends on the 28th. The next leap year is 2028.

What day does Christmas fall on in 2025?

Christmas Day, December 25, 2025, falls on a Thursday. The US federal holiday is observed on the day itself.