Days since calculator
How many days since — or until — any date? Pick one and see the count instantly.
Days since
—
Choose a date above.
- In weeks
- Weekday
- Next milestone
Did you know?
How the count works
The calculator counts whole calendar days, the same way Sincy does. The date you pick is day zero, so if something happened yesterday, it has been 1 day. A date in the future shows how many days are left — the day before, it’s “in 1 day”, and on the day itself it’s “Today”.
Years and months follow the calendar too, so a month can be anywhere from 28 to 31 days long. Leap days are included automatically.
Days between two dates
To count the days between any two dates, change Compared to from today to a different date. The result is the number of days from the first date to the second.
Frequently asked
How many days since January 1?
Pick New Year’s Day above to see how many days have passed this year.
How many days until Christmas?
Pick Christmas above to see how many days are left.
What are day milestones?
Round numbers worth celebrating: 1 week, 1 month, 100 days, 6 months, 1 year, 500 days, 1,000 days and every year after. The calculator shows the next one; the Sincy app reminds you when it arrives.
Is the date I enter stored anywhere?
No. Everything is calculated in your browser and nothing is sent to a server. Copy link puts the date after a # in the address, which browsers never send to the website.