Week Numbers 2030
How many ISO weeks are in 2030?
Answer
2030 starts in 1,143 days, on Tuesday, January 1, 2030. (UTC)
ISO week 1 of 2030 starts on Monday, December 31, 2029 — in 1,142 days.
January 1, 2030, is a Tuesday, a common year → 52 ISO weeks (53 only when January 1 is a Thursday, or a Wednesday in a leap year)
Next
All 52 ISO weeks of 2030
| Week | Monday | Sunday |
|---|---|---|
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| 51 | ||
| 52 |
ISO weeks are always whole, Monday to Sunday, so the numbering of 2030 starts on Monday, December 31, 2029, and ends on Sunday, December 29, 2030.
Other ways to count the weeks of 2030
Counted as whole blocks of seven days inside the calendar year, 2030 is 365 = 52 × 7 + 1, that is 52 weeks and 1 day. Both are true: the numbered ISO weeks are whole, so the first and the last of them may borrow days from the neighbouring years.
In the US numbering (weeks from Sunday, week 1 is the week that contains January 1) 2030 has 52 weeks, and week 1 starts on Sunday, December 30, 2029.
See Also
- Date Calculator - Add to or Subtract Days/Weeks/Months or Years from Today
- Weeks and Days Ago From Today - Calculate what day was it Weeks and Days Ago From Today
- Days Between Two Dates - Calculate the Difference Between Two Dates. How many days, months, and years are between two dates? From date to date calculator
- Days until Date - How many days, weeks, months and years until a Date. How Many Days Until My Birthday? Countdown to date
- Calendar by Month and Year - A month or a whole year laid out by weekday, with ISO week numbers and holidays
- How Many Weeks Are in a Year - Days, weeks, months, hours, minutes and seconds in a named year, leap years included
- What Day of the Week Is It - Find the day of the week of any date. What day of week was or will be a date
- What Day of the Year Is It - Today's day number, the days and weeks left until the end of the year and the share of it already gone

ISO Weeks in Nearby Years
| Year | ISO weeks | Week 1 starts → last week ends |
|---|---|---|
| 2020 | 53 | Dec 30, 2019 → Jan 3, 2021 |
| 2021 | 52 | Jan 4, 2021 → Jan 2, 2022 |
| 2022 | 52 | Jan 3, 2022 → Jan 1, 2023 |
| 2023 | 52 | Jan 2, 2023 → Dec 31, 2023 |
| 2024 | 52 | Jan 1, 2024 → Dec 29, 2024 |
| 2025 | 52 | Dec 30, 2024 → Dec 28, 2025 |
| 2026 | 53 | Dec 29, 2025 → Jan 3, 2027 |
| 2027 | 52 | Jan 4, 2027 → Jan 2, 2028 |
| 2028 | 52 | Jan 3, 2028 → Dec 31, 2028 |
| 2029 | 52 | Jan 1, 2029 → Dec 30, 2029 |
| 2030 | 52 | Dec 31, 2029 → Dec 29, 2030 |