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The hour (common symbol: h or hr, h being the international form of the symbol) is a unit of measurement of time. In modern usage, an hour comprises 60 minutes, or 3,600 second ..more definition+
In relation to the base unit of [time] => (seconds), 1 Atomic Unit Of Time (au) is equal to 2.418884254E-17 seconds, while 1 Hours (hr) = 3600 seconds.| 1900 Atomic Unit Of Time | to common time units |
|---|---|
| 1900 au | = 4.5958800826E-14 seconds (s) |
| 1900 au | = 7.6598001376667E-16 minutes (min) |
| 1900 au | = 1.2766333562778E-17 hours (hr) |
| 1900 au | = 5.3193056511574E-19 days (day) |
| 1900 au | = 7.599008073082E-20 weeks (wk) |
| 1900 au | = 1.4573440140157E-21 years (yr) |
| 1900 au | = 1.7488128168189E-20 months (mo) |
| 1900 au | = 1.4571591891566E-22 decades (dec) |
| 1900 au | = 1.4571591891566E-23 centuries (cent) |
| 1900 au | = 1.4571591891566E-24 millenniums (mill) |