Days of the Week in 1980
1980 began on a Tuesday and was a leap year of 366 days. Its doomsday was Friday, which is the weekday shared by 4 April, 6 June, 8 August, 10 October and 12 December that year.
15 June 1980
Day 167 of 1980 · ISO week 24 of 1980
15 June 1980 was a Sunday. That was 16,854 days ago, which is 46 years.
Work it out in your head
Every year has a doomsday: the weekday shared by 4/4, 6/6, 8/8, 10/10, 12/12, 5/9, 9/5, 7/11, 11/7 and the last day of February. Learn the year's doomsday and any date is a short sum from the nearest anchor.
| Doomsday for 1980 | Friday |
|---|---|
| Nearest anchor | 6/6 |
| Step from the anchor | +9 days |
| Step, modulo 7 | 2 |
| Result | Sunday |
| Year | Years from 1980 |
|---|---|
| 1986 | 6 |
| 1997 | 17 |
| 2003 | 23 |
| 2008 | 28 |
Every month of 1980
The weekday each month opened and closed on. Between the two, every date in that month is a short count away, and the tool above gives it exactly.
| Month | 1st was a | Last day was a | Days |
|---|---|---|---|
| January | Tuesday | Thursday | 31 |
| February | Friday | Friday | 29 |
| March | Saturday | Monday | 31 |
| April | Tuesday | Wednesday | 30 |
| May | Thursday | Saturday | 31 |
| June | Sunday | Monday | 30 |
| July | Tuesday | Thursday | 31 |
| August | Friday | Sunday | 31 |
| September | Monday | Tuesday | 30 |
| October | Wednesday | Friday | 31 |
| November | Saturday | Sunday | 30 |
| December | Monday | Wednesday | 31 |
1980 at a glance
| 1 January | Tuesday |
|---|---|
| 31 December | Wednesday |
| Leap year | Yes, February had 29 days |
| Days in the year | 366 |
| ISO weeks | 52 |
| Doomsday | Friday |
| Days since 1 January 1980 | 17,020 |
Using the doomsday for 1980
The doomsday for 1980 was Friday. That single fact gives you ten dates for free: 4 April, 6 June, 8 August, 10 October and 12 December were all Fridays, and so were 9 May, 5 September, 11 July, 7 November and 29 February.
From any of those, count forwards or backwards to the date you want and take the remainder after dividing by seven. The working panel under the result does it for you on whatever date you enter, so you can check yourself while you learn the method.
Frequently asked questions
What day of the week was 1 January 1980?
A Tuesday. 1980 was a leap year, so it ran to 366 days and ended on a Wednesday.
Was 1980 a leap year?
Yes. 1980 divides by four and is not a century year, so February had 29 days.
How old is someone born in 1980?
They turn 46 during 2026, or are 45 until their birthday. For an exact figure to the day, use the age calculator with the full date of birth.