tldr/pages/linux/hwclock.md
2016-05-25 13:16:02 -04:00

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# hwclock
> Used for reading or changing the hardware clock. Usually requires root.
- Display the current time as reported by the hardware clock:
`hwclock`
- Write the current software clock time to the hardware clock (sometimes used during system setup):
`hwclock --systohc`
- Write the current hardware clock time to the software clock:
`hwclock --hctosys`