Time Converter
Convert between milliseconds, seconds, minutes, hours, days, weeks, months, and years.
Conversions run instantly in your browser — nothing is uploaded or stored.
Convert Time Units Instantly
This time converter switches between eight common units of duration, from milliseconds up to years. Enter a number, choose your units, and get an accurate conversion right away.
Useful for converting project durations, understanding data reported in different time units, planning schedules, or working through math and science problems that mix time units.
Why Use This Converter
- Works entirely in your browser — no sign-up, account, or payment
- Instant results as you type, no submit button required
- Mobile-friendly layout that works on phones, tablets, and desktops
- No ads blocking the tool, no pop-ups interrupting your conversion
Frequently Asked Questions
How many minutes are in a day?
There are 1,440 minutes in a day (24 hours × 60 minutes).
How is a month calculated in this converter?
A month is approximated as 30.44 days (the average length of a calendar month across a year), since months vary from 28 to 31 days.
How is a year calculated?
A year is approximated as 365.25 days to account for leap years. For calendar-specific date math, try the Date Calculator.
Can I convert seconds to hours?
Yes, select seconds as the source unit and hours as the target for an instant, accurate result.
Is this useful for converting video or audio durations?
Yes, it works well for converting milliseconds or seconds into minutes and hours for media or technical timing needs.
Is this tool free to use?
Yes, completely free with no sign-up or account required.