February 1–7, 2010
MonTueWedThuFriSatSun
Week 1 contains the first Thursday of the year.ISO guide →Date → week number
February 4, 2010: What week number?
Thursday, February 4, 2010ISO Week 52010-W05
ISO Week 5 runs from February 1, 2010 to February 7, 2010.
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.
January 31 – February 6, 2010
SunMonTueWedThuFriSat
Week 1 contains January 1.US-style guide →ISO weekWeek 5
US-style weekWeek 6
WeekdayThursday
QuarterQ1
Day of year35 / 365
ISO weekday4 / 7
February 2010
Date context
Thursday, February 4, 2010 is day 35 of 2010 and belongs to ISO Week 5.
The entire ISO Week 5 falls within February.
Distance from today
How long ago was February 4, 2010?
Days6088
Full weeks869
Remaining days5
February 4, 2010 is 6088 days before today, equal to 869 full weeks and 5 days.