All 52 Weeks of 1901
| Week | Starts (Mon) | Ends (Sun) | Federal holidays |
|---|---|---|---|
| 1 | Dec 31, 1900 | Jan 6, 1901 | New Year's Day |
| 2 | Jan 7, 1901 | Jan 13, 1901 | — |
| 3 | Jan 14, 1901 | Jan 20, 1901 | — |
| 4 | Jan 21, 1901 | Jan 27, 1901 | MLK Day |
| 5 | Jan 28, 1901 | Feb 3, 1901 | — |
| 6 | Feb 4, 1901 | Feb 10, 1901 | — |
| 7 | Feb 11, 1901 | Feb 17, 1901 | — |
| 8 | Feb 18, 1901 | Feb 24, 1901 | Presidents' Day |
| 9 | Feb 25, 1901 | Mar 3, 1901 | — |
| 10 | Mar 4, 1901 | Mar 10, 1901 | — |
| 11 | Mar 11, 1901 | Mar 17, 1901 | — |
| 12 | Mar 18, 1901 | Mar 24, 1901 | — |
| 13 | Mar 25, 1901 | Mar 31, 1901 | — |
| 14 | Apr 1, 1901 | Apr 7, 1901 | — |
| 15 | Apr 8, 1901 | Apr 14, 1901 | — |
| 16 | Apr 15, 1901 | Apr 21, 1901 | — |
| 17 | Apr 22, 1901 | Apr 28, 1901 | — |
| 18 | Apr 29, 1901 | May 5, 1901 | — |
| 19 | May 6, 1901 | May 12, 1901 | — |
| 20 | May 13, 1901 | May 19, 1901 | — |
| 21 | May 20, 1901 | May 26, 1901 | — |
| 22 | May 27, 1901 | Jun 2, 1901 | Memorial Day |
| 23 | Jun 3, 1901 | Jun 9, 1901 | — |
| 24 | Jun 10, 1901 | Jun 16, 1901 | — |
| 25 | Jun 17, 1901 | Jun 23, 1901 | — |
| 26 | Jun 24, 1901 | Jun 30, 1901 | — |
| 27 | Jul 1, 1901 | Jul 7, 1901 | Independence Day |
| 28 | Jul 8, 1901 | Jul 14, 1901 | — |
| 29 | Jul 15, 1901 | Jul 21, 1901 | — |
| 30 | Jul 22, 1901 | Jul 28, 1901 | — |
| 31 | Jul 29, 1901 | Aug 4, 1901 | — |
| 32 | Aug 5, 1901 | Aug 11, 1901 | — |
| 33 | Aug 12, 1901 | Aug 18, 1901 | — |
| 34 | Aug 19, 1901 | Aug 25, 1901 | — |
| 35 | Aug 26, 1901 | Sep 1, 1901 | — |
| 36 | Sep 2, 1901 | Sep 8, 1901 | Labor Day |
| 37 | Sep 9, 1901 | Sep 15, 1901 | — |
| 38 | Sep 16, 1901 | Sep 22, 1901 | — |
| 39 | Sep 23, 1901 | Sep 29, 1901 | — |
| 40 | Sep 30, 1901 | Oct 6, 1901 | — |
| 41 | Oct 7, 1901 | Oct 13, 1901 | — |
| 42 | Oct 14, 1901 | Oct 20, 1901 | Columbus Day |
| 43 | Oct 21, 1901 | Oct 27, 1901 | — |
| 44 | Oct 28, 1901 | Nov 3, 1901 | — |
| 45 | Nov 4, 1901 | Nov 10, 1901 | — |
| 46 | Nov 11, 1901 | Nov 17, 1901 | Veterans Day |
| 47 | Nov 18, 1901 | Nov 24, 1901 | — |
| 48 | Nov 25, 1901 | Dec 1, 1901 | Thanksgiving |
| 49 | Dec 2, 1901 | Dec 8, 1901 | — |
| 50 | Dec 9, 1901 | Dec 15, 1901 | — |
| 51 | Dec 16, 1901 | Dec 22, 1901 | — |
| 52 | Dec 23, 1901 | Dec 29, 1901 | Christmas Day |
1901 Week Numbers FAQ
How many weeks are in 1901?
1901 has 52 ISO weeks. Week 1 runs from Monday, December 31, 1900 to Sunday, January 6, 1901, and week 52 ends on Sunday, December 29, 1901.
What week number is January 1, 1901?
January 1, 1901 is a Tuesday in week 1 of 1901.
How are ISO week numbers counted?
ISO 8601 weeks start on Monday. Week 1 is the week that contains the first Thursday of the year, which is the same as the week that contains January 4. A year has 52 weeks, or 53 when it starts on a Thursday (or on a Wednesday in a leap year).
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