January 2021 Calendar
Updated November 6, 2026 · Edited by the JanuaryCalendar.com team
January 2021 started on Friday, January 1, and ended on Sunday, January 31. It had 31 days — 21 weekdays and 10 weekend days — and 19 working days in the US after New Year's Day (Fri, Jan 1) and Martin Luther King Jr. Day (Mon, Jan 18).
2021 was an inauguration year: the 59th presidential inauguration took place on Wednesday, January 20, 2021.
- Starts
- Friday
- Ends
- Sunday
- Days
- 31
- US working days
- 19
- UK working days
- 20
- Full moon
- Jan 28
January 2021
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
|---|---|---|---|---|---|---|
| 1New Year's Day | 2 | |||||
| 3 | 4 | 5 | 6Last QuarterEpiphany | 7Orthodox Christmas | 8 | 9 |
| 10 | 11 | 12 | 13New Moon | 14 | 15 | 16 |
| 17 | 18MLK Day | 19 | 20First QuarterInauguration Day | 21 | 22 | 23 |
| 24 | 25 | 26 | 27 | 28Full Moon | 29 | 30 |
| 31 |
- Jan 1New Year's Day
- Jan 6Epiphany (Three Kings Day)
- Jan 6◑ Last Quarter, 4:37 a.m. EST
- Jan 7Orthodox Christmas
- Jan 13● New Moon, 12:00 a.m. EST
- Jan 18Martin Luther King Jr. Day
- Jan 20Inauguration Day
- Jan 20◐ First Quarter, 4:02 p.m. EST
- Jan 28○ Full Moon, 2:16 p.m. EST
January 2021 holidays and observances
| Date | Day | Holiday or observance | Notes |
|---|---|---|---|
| Jan 1 | Fri | New Year's Day | Federal holiday |
| Jan 6 | Wed | Epiphany (Three Kings Day) | Religious |
| Jan 7 | Thu | Orthodox Christmas | Religious |
| Jan 14 | Thu | Orthodox New Year | Religious |
| Jan 15 | Fri | Martin Luther King Jr.'s birthday | Cultural |
| Jan 18 | Mon | Martin Luther King Jr. Day | Federal holiday, third Monday |
| Jan 20 | Wed | Inauguration Day | 59th inauguration; federal holiday in the Washington, D.C. area |
| Jan 25 | Mon | Burns Night | Cultural |
| Jan 26 | Tue | Australia Day | Public holiday (Australia) |
| Jan 26 | Tue | Republic Day | Public holiday (India) |
| Jan 27 | Wed | International Holocaust Remembrance Day | UN observance |
Lunar New Year (Year of the Ox) fell on Friday, February 12, 2021, so it was not in January this year. Lunar New Year dates.
See January bank holidays for the UK, Canada, Australia and New Zealand, and national days for daily observances.
Key dates
- Friday, January 15 – Q4 2020 estimated tax payment due (IRS deadlines)
- Thursday, January 28 – Full moon at 2:16 p.m. EST (19:16 UTC)
- Sunday, January 31 – UK Self Assessment tax return and payment deadline
- Monday, February 1, 2021 – W-2 and 1099-NEC forms due to workers and the IRS/SSA
Moon phases
| Phase | Date (Eastern) | Time (EST) | Time (UTC) |
|---|---|---|---|
| ◑ Last Quarter | Wednesday, January 6 | 4:37 a.m. EST | Jan 06, 09:37 UTC |
| ● New Moon | Wednesday, January 13 | 12:00 a.m. EST | Jan 13, 05:00 UTC |
| ◐ First Quarter | Wednesday, January 20 | 4:02 p.m. EST | Jan 20, 21:02 UTC |
| ○ Full Moon | Thursday, January 28 | 2:16 p.m. EST | Jan 28, 19:16 UTC |
Times calculated for Eastern Standard Time (UTC−5). About the Wolf Moon.
Week numbers
| ISO week | Dates in January | Days |
|---|---|---|
| Week 53 of 2020 | January 1 – 3 | Fri – Sun |
| Week 1 | January 4 – 10 | Mon – Sun |
| Week 2 | January 11 – 17 | Mon – Sun |
| Week 3 | January 18 – 24 | Mon – Sun |
| Week 4 | January 25 – 31 | Mon – Sun |
ISO 8601 weeks start on Monday. How week numbers work.
Working days and weekdays
January 2021 had 19 working days in the United States (21 weekdays minus federal holidays on weekdays) and 20 in England and Wales. Friday, Saturday and Sunday occurred five times; every other weekday occurred four times.
| Weekday | Times in January 2021 |
|---|---|
| Sunday | 5 |
| Monday | 4 |
| Tuesday | 4 |
| Wednesday | 4 |
| Thursday | 4 |
| Friday | 5 |
| Saturday | 5 |
Same calendar as January 2021
January always has 31 days, so any January that starts on a Friday has the same layout. January 2021 matches January 2010, 2016, 2027, 2038, 2044, 2049. A printed calendar from any of those years can be reused for January — but check holidays such as MLK Day, which always lands on the third Monday.
January 2021 in history
- On January 6, 2021, supporters of President Donald Trump stormed the US Capitol as Congress met to count the electoral votes from the 2020 election.
- On January 13, 2021, the House of Representatives impeached President Trump for a second time, on a charge of incitement of insurrection.
- On January 20, 2021, Joe Biden was inaugurated as the 46th president of the United States, and Kamala Harris became the first woman to serve as vice president.
- On January 22, 2021, the UN Treaty on the Prohibition of Nuclear Weapons entered into force.
Printable January 2021 calendar
Frequently asked questions
What day does January 2021 start on?
January 2021 started on a Friday and ended on a Sunday, January 31.
How many working days are in January 2021?
January 2021 had 19 working days in the US and 20 in England and Wales, out of 21 weekdays.
When is MLK Day in 2021?
Martin Luther King Jr. Day fell on Monday, January 18, 2021, the third Monday of January.
Is January 1, 2021 a federal holiday?
Yes. New Year's Day is a US federal holiday. It fell on a Friday.
When is the full moon in January 2021?
The full moon occurred on Thursday, January 28, 2021 at 2:16 p.m. EST (19:16 UTC).
Which weekdays occur five times in January 2021?
Friday, Saturday and Sunday each occurred five times in January 2021.
2021 calendar by month
January calendars for other years
- 2020Starts Wednesday
- 2021Starts Friday
- 2022Starts Saturday
- 2023Starts Sunday
- 2024Starts Monday
- 2025Starts Wednesday
- 2026Starts Thursday
- 2027Starts Friday
- 2028Starts Saturday
- 2029Starts Monday
- 2030Starts Tuesday
- 2031Starts Wednesday
- 2032Starts Thursday
- 2033Starts Saturday
- 2034Starts Sunday
- 2035Starts Monday
- 2036Starts Tuesday
- 2037Starts Thursday
- 2038Starts Friday
- 2039Starts Saturday
- 2040Starts Sunday