calc tools

Time Unit Converter

Convert milliseconds, seconds, minutes, hours, days, weeks and common year lengths.

Runs locally

Two-way unit conversion

Time Unit Converter

Local only
1 h equals60 min
Show this value in every unit
UnitConverted value
Millisecond (ms)3,600,000
Second (s)3,600
Minute (min)60
Hour (h)1
Day (d)0.041666666667
Week (wk)0.005952380952
Common year (365 days) (yr)0.000114155251

Conversion happens instantly in this browser. Your value is not transmitted or stored.

One idea, three depths

Choose how deeply to explain Time converter

Time converter: Convert milliseconds, seconds, minutes, hours, days, weeks and common year lengths.

Age 5Explain it to a 5-year-oldStart with a picture

Imagine a number machine: put a measurement or question in one side and it follows a fixed rule to make the answer. Convert milliseconds, seconds, minutes, hours, days, weeks and common year lengths.

Age 15Explain it to a 15-year-oldConnect it to the formula

Convert milliseconds, seconds, minutes, hours, days, weeks and common year lengths. Fixed time units convert through seconds. Month and calendar-year lengths vary, so this tool includes only a labelled 365-day common year. Change one input or choice at a time and compare the result to see which part of the rule it controls.

CollegeExplain it at college levelState the model precisely

The browser evaluates the selected numerical expression, conversion, or plotted function locally. Fixed time units convert through seconds. Month and calendar-year lengths vary, so this tool includes only a labelled 365-day common year. Entries and results remain in this browser. Important results should still be checked against the records, standards, or rules that govern the real situation.

How this tool works

Fixed time units convert through seconds. Month and calendar-year lengths vary, so this tool includes only a labelled 365-day common year.

Privacy and limitations

Your entries and results stay in this browser. Check important results against the rules, records or systems that govern your situation.

Reuse the page responsiblyCite this pageAPA, MLA, Chicago, Harvard, BibTeX and RIS

These formats cite this calculator page itself. They are separate from the academic references above, which support the mathematical method and terminology.

APA 7

MW SysArc. (2026, July 21). Time Unit Converter. MW SysArc Tools. https://calc.mwsysarc.com/time-converter

MLA 9

MW SysArc. “Time Unit Converter.” MW SysArc Tools, 21 July 2026, https://calc.mwsysarc.com/time-converter. Accessed 31 Aug. 2026.

Chicago 17

MW SysArc. “Time Unit Converter.” MW SysArc Tools. Published July 21, 2026. Accessed August 31, 2026. https://calc.mwsysarc.com/time-converter.

Harvard

MW SysArc (2026) ‘Time Unit Converter’, MW SysArc Tools. Published 21 July 2026. Available at: https://calc.mwsysarc.com/time-converter (Accessed: 31 August 2026).

BibTeX and RIS records

BibTeX

@misc{mwsysarc_time_converter_2026,
  author = {{MW SysArc}},
  title = {Time Unit Converter},
  howpublished = {MW SysArc Tools},
  year = {2026},
  url = {https://calc.mwsysarc.com/time-converter},
  note = {Published July 21, 2026; accessed August 31, 2026}
}

RIS

TY  - ELEC
AU  - MW SysArc
TI  - Time Unit Converter
T2  - MW SysArc Tools
PY  - 2026
DA  - 2026-07-21
Y2  - 2026-08-31
UR  - https://calc.mwsysarc.com/time-converter
N1  - Published July 21, 2026
ER  -

Clear answers

Frequently asked questions

What does the Time converter do?

Convert milliseconds, seconds, minutes, hours, days, weeks and common year lengths.

How does the Time converter work?

Fixed time units convert through seconds. Month and calendar-year lengths vary, so this tool includes only a labelled 365-day common year.

What can I learn from the Time converter?

It shows how the entered values or choices produce the result. Change one input at a time to compare outcomes and understand the underlying rule.

Does MW SysArc receive or store what I enter?

No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.

How should I use the result?

Use the result as a practical reference. Review the inputs, assumptions and stated limitations before relying on it.

Last reviewed . Calculations tested .

MW SysArc Certified