时间转换器
转换毫秒、秒、小时、天、年。
Enter a value to convert instantly between units of time — from milliseconds to years. Note that months and years are approximate when using fixed factors. Everything runs locally in your browser.
工作原理
- 1 Type a value.
- 2 Pick the units to convert from and to.
- 3 Copy the result, or Swap to reverse.
常见用例
- Convert seconds to hours or days.
- Estimate durations.
- Convert timeouts and intervals.
- Plan schedules across units.
常见问题
Is my input sent to a server?
No. Every calculation runs locally in your browser — your input is never uploaded, stored or logged.
How are months and years defined?
Approximately: 1 month = 30.4375 days and 1 year = 365.25 days. Real calendar months vary, so treat these as estimates.
Is it really free?
Yes — free, with no signup and no limits.