Canon EOS REBEL T8i Advanced User's Manual page 654

Use the <
hour/minute), then press <
Use the <
After entering the time zone or time difference, use the <
keys to select [OK], then press <
3.
Set the date and time.
Use the <
Use the <
> < > keys to select a [Time difference] item (+ –/
>.
> < > keys to set it, then press <
> < > keys to select an item, then press <
> < > keys to set it, then press <
654
>.
>.
>.
> < >
>.