linux: added date, time, timezone and hwclock guides

master
TiynGER 3 years ago
parent fb8550be2e
commit 4b6e8d02b2

@ -138,7 +138,12 @@ en_US.UTF-8 UTF-8
- `locale-gen` - Generate languages
- `echo KEYMAP=de-latin1-nodeadkeys > /etc/vconsole.conf` - set the keymap
- `tzselect` - Set region
- `cp /usr/share/zoneinfo/Europe/Berlin /etc/localtime` - set your timezone
(select the first file accordingly to your location)
- `date +%Y%m%d -s "<yyyymmdd>"` - set the current date (change
values accordingly)
- `date +%T -s "<hh:mm:ss>"` - set the current time (change values accordingly)
- `hwclock -w` - sync the current date and time with the hardware clock
## 9. Configure and create kernel-image

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# Date
`date` is a program to show and edit the date and time of a system.
To change the hardware clock look at the [according article](./hwclock.md)
## Display time and date
To change the time and date run the following command:
```shell
date
```
## Change the date and time
To change the date run the following command with an adjusted value for the
date:
```shell
date +%Y%m%d -s "20210809"
```
To change the time run the following command with an adjusted value for the
date:
```shell
date +%T -s "18:49:42"
```
After that you can check if the time is correct by displaying it.
## Set timezone
To set your timezone run the following command with the accordingly selected
file for your location:
```shell
cp /usr/share/zoneinfo/Europe/Berlin /etc/localtime
```

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# HWClock
`hwclock` is a program to set and display the hardware clock.
## Display time and date
To display the hardware clock run the following command:
```shell
hwclock
```
## Sync the hardware clock to the system time
To sync the hardware clock run the following command:
```shell
hwclock -w
```
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