What date is 1,000 years before tomorrow?

Find out which date was 1,000 years before tomorrow. When was tomorrow minus 1,000 years. The calculator adds or subtracts days, weeks, months and years from now.

Today is March 12, 2025.

1,000 years before tomorrow was:

Sunday, March 13, 1025

13th day of of spring, 72th day of the year.
Not a leap year. 293 days until the end of the year.

Born at the year of 🐮 Ox according to Chinese Zodiac calendar, and under ♓ Pisces sign according to Western Zodiac calendar.

Sunday, March 13, 1025 as Unix timestamp: -29815098896

1000 years in other units of measurement is

31,556,995,200 seconds
365,243 minutes
365,243 hours
365,243 days
52,177 weeks
12,000 months

How to subtract 1,000 years from a date in Excel or Google Sheets?

To add or subtract years to a date you can use two formulas, but each has its nuances related to handling end of month day in leap years. The first one is suggested by official Microsoft Excel documentation:

=DATE(YEAR(TODAY()) + 1000, MONTH(TODAY()), DAY(TODAY()))

For example if you try to add 1 year to February 29 2024 (which is a leap year), the result would be 01/03/2025. The DATE function in Excel constructs a date value based on the year, month, and day parameters you provide. When the provided day exceeds the number of days in the resulting month, Excel rolls over to the next month. This mechanism is intended to avoid invalid dates and ensures that every date calculation results in a valid and logical date value.

Another formula will handle month endings more gracefully, especially in case of leap year:

=EDATE(TODAY(), -(1000 * 12))

For example if you try to add 1 year to February 29 2024 (which is a leap year), the result would be 28/02/2025. This happens because EDATE seamlessly handles the end-of-month logic. If the resulting month has fewer days than the start date's day, EDATE returns the last day of the resulting month. Thus, when moving from a leap year to a non-leap year, adding a year to February 29 results in February 28 of the following year, as this is the last valid day of February in a non-leap year.

Replace TODAY() with a cell reference (for example: A1) to manipulate dates other than today's date.

Learn more about edge-cases and using Excel or Google Sheets formulas to add or subtract days, weeks, months or years from a date click here. You can also download a free Microsoft Excel sample spreadsheet with examples.

What date is 1,000 years before tomorrow? — Dates Calculator

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Created by Alex Fedorov
Last updated : July 26, 2024