Time Since Calculator
Enter any date and see exactly how much time has passed since then - or how long until it if it's in the future. Shows the breakdown in years, months, days, hours, minutes, and seconds, plus totals in each unit.
How to use
- Pick the date and time you want to measure from.
- Leave the end time as now, or set a specific end date to measure between two points.
- You'll see the full breakdown: years, months, days, hours, minutes, seconds - plus total figures in each unit.
Related tools:
How long ago did something happen? How much time has passed since a major life event, a business founding, a historical date, or a personal milestone? Enter the past date (and optionally a time) and the calculator shows elapsed years, months, days, hours, and minutes with precision.
This is useful for contexts where you need more than just the year count. A business that started on March 5, 2019 is more than 5 years old - but how many months or days exactly? An anniversary countdown, a contract duration check, or simply satisfying curiosity about a historical gap all benefit from a precise breakdown.
Frequently Asked Questions
What if I enter a future date?
The calculator shows negative elapsed time, effectively functioning as a countdown. For dedicated future-date countdowns, the Countdown to Date calculator has a live updating display.
Can it tell me the exact number of months since a date?
Yes. Months are counted as complete calendar months. June 15 to September 15 is exactly 3 months. June 15 to September 14 is 2 months and 30 days.
Does it include hours and minutes?
If you enter a specific time alongside the date, yes. Without a time, the calculation assumes midnight on the entered date.