January 2031 Calendar
January 2031 has 31 days, starting on a Wednesday and ending on a Friday. It spans ISO weeks 1–5, with 23 weekdays and 8 weekend days — and 5 public holidays across the 12 countries listed below.
January 2031 month grid
January 2031
| W | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| 1 | 30 | 31 | 1 New Year's Day | 2 | 3 | 4 | 5 |
| 2 | 6 | 7 | 8 Full Moon 18:26 UTC | 9 | 10 | 11 | 12 |
| 3 | 13 Coming of Age Day | 14 | 15 | 16 Last Quarter 12:48 UTC | 17 | 18 | 19 |
| 4 | 20 Martin Luther King Jr. Day | 21 | 22 | 23 New Moon 04:31 UTC | 24 | 25 | 26 Republic Day |
| 5 | 27 Australia Day | 28 | 29 | 30 First Quarter 07:43 UTC | 31 | 1 | 2 |
| 6 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
12 public holiday 🌑 🌓 🌕 🌗 moon phase (UTC date) W = ISO week
Public holidays in January 2031
| Date | Holiday | Observed in |
|---|---|---|
| New Year's Day | US, UK, Canada, Australia, Ireland, Germany, France, Japan, Brazil, Mexico, South Africa | |
| Coming of Age Day | Japan | |
| Martin Luther King Jr. Day | US | |
| Republic Day | India | |
| Australia Day | Australia |
No national public holiday in January 2031 for the selected country.
National holidays only, from the open-source date-holidays dataset. States, provinces and regions add their own — see each country's holiday page for the full list and observances.
Moon phases
- Full Moon
- Last Quarter
- New Moon
- First Quarter
Times are shown in your time zone when JavaScript is on, UTC otherwise; near midnight the local date can differ. For moonrise and moonset see the moon pages for New York, London or Sydney.
January 2031 at a glance
- Days
- 31
- Weekdays
- 23
- Weekend days
- 8
- ISO weeks
- 1–5
- Day of year
- 1–31 of 365
- Quarter
- Q1
- Days left in 2031 after the 31st
- 334
- Friday the 13th
- No
The name: Named after Janus, the Roman god of doorways and beginnings.
Working days by country
Monday–Friday minus national public holidays that fall on a weekday. Regional holidays are not subtracted.
Need a span that crosses months? Use the date and time calculator.
January 2031: common questions
How many working days are there in January 2031?
January 2031 has 23 weekdays (Monday to Friday) and 8 weekend days. In the United States, New Year's Day (Wed, Jan 1) and Martin Luther King Jr. Day (Mon, Jan 20) fall in the month, leaving 21 working days. In the United Kingdom, New Year's Day (Wed, Jan 1) leaves 22 working days (UK-wide bank holidays only; England, Scotland and Northern Ireland each add their own).
What week numbers are in January 2031?
January 2031 covers ISO weeks 1, 2, 3, 4, 5. ISO weeks start on Monday, so January 1, a Wednesday, falls in week 1.
When is the full moon in January 2031?
Wednesday, January 8 at 18:26 UTC. The new moon is on Thursday, January 23.
What day of the week does January 2031 start on?
January 2031 starts on a Wednesday and ends on a Friday (the 31st). It runs from day 1 to day 31 of the year.