Months equal to December 2021
The month December 2021 has 31 days and starts on a Wednesday. December 2021 has 5 Wednesdays, 5 Thursdays, 5 Fridays.
| Months which have the same number of days and starting weekday as December 2021 | |||
|---|---|---|---|
| Year | Month | Compared to December 2021 | Since last |
| 2012 | August | 9 years, 4 months before | |
| 2013 | May | 8 years, 7 months before | + 9 months |
| 2014 | January | 7 years, 11 months before | + 8 months |
| 2014 | October | 7 years, 2 months before | + 9 months |
| 2015 | July | 6 years, 5 months before | + 9 months |
| 2017 | March | 4 years, 9 months before | + 20 months |
| 2018 | August | 3 years, 4 months before | + 17 months |
| 2019 | May | 2 years, 7 months before | + 9 months |
| 2020 | January | 23 months before | + 8 months |
| 2020 | July | 17 months before | + 6 months |
| 2021 | December | selected month | + 17 months |
| 2023 | March | 15 months after | + 15 months |
| 2024 | May | 2 years, 5 months after | + 14 months |
| 2025 | January | 3 years, 1 months after | + 8 months |
| 2025 | October | 3 years, 10 months after | + 9 months |
| 2026 | July | 4 years, 7 months after | + 9 months |
| 2027 | December | 6 years after | + 17 months |
| 2028 | March | 6 years, 3 months after | + 3 months |
| 2029 | August | 7 years, 8 months after | + 17 months |
| 2030 | May | 8 years, 5 months after | + 9 months |
| 2031 | January | 9 years, 1 months after | + 8 months |
| 2031 | October | 9 years, 10 months after | + 9 months | Between years 2011 and 2031 this occurs 22 times. Note that holidays seldom match exactly. Selected month is highlighted. |
Which years have the same weekdays?
Calendars repeat themselves – find out which years share the same calendar dates and reuse your calendar.
Which months have the same weekdays?
Calendars repeat themselves – find out which months share the same calendar dates and reuse your calendar.
When does a date fall on a certain weekday?
Do you feel dates like Friday the 13th occur often? Our service tells you exactly when.
About repeating months
A year has 7 months containing 31 days, 4 months containing 30 days and the final month has either 28 or 29 days. All weekdays occur four times.
This means that:
- 31-day months repeat on average once every year.
- 30-day months repeat on average four times every 7 years.
- 29-day months repeat on average once every 28 years.
- 28-day months repeat on average 3 times every 28 years.