Date → week number

September 3, 1960: What week number?

Saturday, September 3, 1960ISO Week 351960-W35

ISO Week 35 runs from August 29, 1960 to September 4, 1960.

Mon29AugustTue30AugustWed31AugustThu1SeptemberFri2SeptemberSat3SeptemberSun4September
← 09-02-196009-04-1960 →

ISO vs US-style week numbers

The same date can have different week numbers

ISO weeks start on Monday. The simplified US-style system starts on Sunday and counts the week containing January 1 as Week 1.

ISO week1960-W35

August 29 – September 4, 1960

MonTueWedThuFriSatSun
Week 1 contains the first Thursday of the year.ISO guide →
US-style weekWeek 36

August 28 – September 3, 1960

SunMonTueWedThuFriSat
Week 1 contains January 1.US-style guide →
ISO weekWeek 35
US-style weekWeek 36
WeekdaySaturday
QuarterQ3
Day of year247 / 366
ISO weekday6 / 7

Date context

Saturday, September 3, 1960 is day 247 of 1960 and belongs to ISO Week 35.

This ISO week crosses a month boundary: it starts in August and ends in September.

Distance from today

How long ago was September 3, 1960?

Days24090
Full weeks3441
Remaining days3

September 3, 1960 is 24090 days before today, equal to 3441 full weeks and 3 days.