How to Calculate Time Since a Date
This tool calculates the exact amount of time that has passed since a specific moment, updating live every second.
- 1. Select a Past Date: Use the date picker to choose a date in the past. This is the starting point for the calculation.
- 2. Include Time (Optional): For greater precision, check the "Include time" box and select the exact hour and minute of the event.
- 3. Start Calculating: Press the "Start Calculating" button to begin. The tool will display a live, ticking counter showing the elapsed time in years, months, days, hours, minutes, and seconds since your selected moment.
Frequently Asked Questions
How is the elapsed time calculated?
The calculator determines the precise difference between your selected start date/time and the current time on your device. It then breaks down this total duration into years, months, days, and so on. The counter updates every second to give you a live view of the time passing.
What can I use this calculator for?
This tool is very versatile. You can use it to track the age of a project, find out how long it has been since a major life event (like a graduation or wedding), see how long you've been on a new habit, or simply for fun to see how many seconds have passed since your last birthday.
What is the difference between this and the "Date to Date" calculator?
The Time Since Calculator (this tool) measures the duration from a single point in the past to the present moment, and it updates live. The Date to Date Calculator measures the fixed duration between two specific dates you provide (e.g., from January 1, 2020, to March 15, 2023). It does not update live.