Year Overview
2021
All 52 calendar weeks in 2021
Calendar Weeks
52
First Day
Jan 01
Last Day
Dec 31
All Calendar Weeks 2021
| CW | Monday | Sunday | Type | Quarter |
|---|---|---|---|---|
| 1 | Jan 04, 2021 | Jan 10, 2021 | Odd | Q1 |
| 2 | Jan 11, 2021 | Jan 17, 2021 | Even | Q1 |
| 3 | Jan 18, 2021 | Jan 24, 2021 | Odd | Q1 |
| 4 | Jan 25, 2021 | Jan 31, 2021 | Even | Q1 |
| 5 | Feb 01, 2021 | Feb 07, 2021 | Odd | Q1 |
| 6 | Feb 08, 2021 | Feb 14, 2021 | Even | Q1 |
| 7 | Feb 15, 2021 | Feb 21, 2021 | Odd | Q1 |
| 8 | Feb 22, 2021 | Feb 28, 2021 | Even | Q1 |
| 9 | Mar 01, 2021 | Mar 07, 2021 | Odd | Q1 |
| 10 | Mar 08, 2021 | Mar 14, 2021 | Even | Q1 |
| 11 | Mar 15, 2021 | Mar 21, 2021 | Odd | Q1 |
| 12 | Mar 22, 2021 | Mar 28, 2021 | Even | Q1 |
| 13 | Mar 29, 2021 | Apr 04, 2021 | Odd | Q1 |
| 14 | Apr 05, 2021 | Apr 11, 2021 | Even | Q2 |
| 15 | Apr 12, 2021 | Apr 18, 2021 | Odd | Q2 |
| 16 | Apr 19, 2021 | Apr 25, 2021 | Even | Q2 |
| 17 | Apr 26, 2021 | May 02, 2021 | Odd | Q2 |
| 18 | May 03, 2021 | May 09, 2021 | Even | Q2 |
| 19 | May 10, 2021 | May 16, 2021 | Odd | Q2 |
| 20 | May 17, 2021 | May 23, 2021 | Even | Q2 |
| 21 | May 24, 2021 | May 30, 2021 | Odd | Q2 |
| 22 | May 31, 2021 | Jun 06, 2021 | Even | Q2 |
| 23 | Jun 07, 2021 | Jun 13, 2021 | Odd | Q2 |
| 24 | Jun 14, 2021 | Jun 20, 2021 | Even | Q2 |
| 25 | Jun 21, 2021 | Jun 27, 2021 | Odd | Q2 |
| 26 | Jun 28, 2021 | Jul 04, 2021 | Even | Q2 |
| 27 | Jul 05, 2021 | Jul 11, 2021 | Odd | Q3 |
| 28 | Jul 12, 2021 | Jul 18, 2021 | Even | Q3 |
| 29 | Jul 19, 2021 | Jul 25, 2021 | Odd | Q3 |
| 30 | Jul 26, 2021 | Aug 01, 2021 | Even | Q3 |
| 31 | Aug 02, 2021 | Aug 08, 2021 | Odd | Q3 |
| 32 | Aug 09, 2021 | Aug 15, 2021 | Even | Q3 |
| 33 | Aug 16, 2021 | Aug 22, 2021 | Odd | Q3 |
| 34 | Aug 23, 2021 | Aug 29, 2021 | Even | Q3 |
| 35 | Aug 30, 2021 | Sep 05, 2021 | Odd | Q3 |
| 36 | Sep 06, 2021 | Sep 12, 2021 | Even | Q3 |
| 37 | Sep 13, 2021 | Sep 19, 2021 | Odd | Q3 |
| 38 | Sep 20, 2021 | Sep 26, 2021 | Even | Q3 |
| 39 | Sep 27, 2021 | Oct 03, 2021 | Odd | Q3 |
| 40 | Oct 04, 2021 | Oct 10, 2021 | Even | Q4 |
| 41 | Oct 11, 2021 | Oct 17, 2021 | Odd | Q4 |
| 42 | Oct 18, 2021 | Oct 24, 2021 | Even | Q4 |
| 43 | Oct 25, 2021 | Oct 31, 2021 | Odd | Q4 |
| 44 | Nov 01, 2021 | Nov 07, 2021 | Even | Q4 |
| 45 | Nov 08, 2021 | Nov 14, 2021 | Odd | Q4 |
| 46 | Nov 15, 2021 | Nov 21, 2021 | Even | Q4 |
| 47 | Nov 22, 2021 | Nov 28, 2021 | Odd | Q4 |
| 48 | Nov 29, 2021 | Dec 05, 2021 | Even | Q4 |
| 49 | Dec 06, 2021 | Dec 12, 2021 | Odd | Q4 |
| 50 | Dec 13, 2021 | Dec 19, 2021 | Even | Q4 |
| 51 | Dec 20, 2021 | Dec 26, 2021 | Odd | Q4 |
| 52 | Dec 27, 2021 | Jan 02, 2022 | Even | Q4 |
Downloads for 2021
Calendar Weeks 2021 – ISO 8601 Overview
The year 2021 has 52 calendar weeks according to the international ISO 8601 standard. The first calendar week is defined as the week containing the first Thursday of the year.
In our table, you'll find all calendar weeks with their start (Monday) and end dates (Sunday). The "Type" column indicates whether it's an even or odd week – useful for shift schedules and recurring appointments.