Week Numbers 2030

What Week of the Year Is It
Week numbers of

How many ISO weeks are in 2030?

Answer

will have
52 ISO weeks

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

WeekMondaySunday
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
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

ISO Weeks in Nearby Years

YearISO weeksWeek 1 starts → last week ends
202053Dec 30, 2019 → Jan 3, 2021
202152Jan 4, 2021 → Jan 2, 2022
202252Jan 3, 2022 → Jan 1, 2023
202352Jan 2, 2023 → Dec 31, 2023
202452Jan 1, 2024 → Dec 29, 2024
202552Dec 30, 2024 → Dec 28, 2025
202653Dec 29, 2025 → Jan 3, 2027
202752Jan 4, 2027 → Jan 2, 2028
202852Jan 3, 2028 → Dec 31, 2028
202952Jan 1, 2029 → Dec 30, 2029
203052Dec 31, 2029 → Dec 29, 2030

FAQ

How many ISO weeks are in 2030?

2030 will have 52 ISO weeks

When does week 1 of 2030 start?

Week 1 of 2030 runs from Monday, December 31, 2029, to Sunday, January 6, 2030. It is the week that contains the first Thursday of the year, January 3, 2030.

When does the last week of 2030 end?

The last ISO week of 2030 is week 52: Monday, December 23, 2030, to Sunday, December 29, 2030. December 31, 2030, already belongs to week 1 of 2031.

Why does 2030 have 52 ISO weeks?

2030 starts on a Tuesday and ends on a Tuesday, and it is a common year of 365 days. A year has 53 ISO weeks only when 1 January is a Thursday, or a Wednesday in a leap year; neither holds here, so it has 52.

See Also