Date

Day of the Week Finder

Find which day of the week any date falls on, past or future, with its week number and day of the year.

1 January 2000 was a
Saturday
9,802 days ago
ISO week
52 of 1999
Day of the year
1 of 366
Quarter
Q1

About this date

DateSaturday, 1 January 2000
Position in month1st Saturday of January
Weekday or weekendWeekend
ISO weekWeek 52 of 1999 (weeks start on Monday)
Day of the year1 (365 days left in the year)
Days in January31
Leap yearYes (366 days)
Time since26 years, 10 months, 1 day

Same date in coming years

1 January 2027Friday
1 January 2028Saturday
1 January 2029Monday
1 January 2030Tuesday
1 January 2031Wednesday
Handy for birthdays and anniversaries.

Day of the Week Finder: frequently asked questions

What day of the week was I born on?

Enter your date of birth and press Find the day. You'll also see which weekday your birthday falls on in each of the next five years.

What day was 15 August 1947?

India's Independence Day, 15 August 1947, was a Friday. Use the "Indian Independence" example link to see the details.

What is the ISO week number?

ISO 8601 weeks start on Monday, and week 1 is the week with the year's first Thursday. So 1 January can fall in week 52 or 53 of the previous year.

How far back does it work?

Any date from year 1 onwards, using the Gregorian calendar throughout, as computers and most date tools do.

More Date tools