Toshiba DST-3100 Owner's Manual page 32

Installation
The Time And Date screen's Source field will default to Satellite. This means that your receiver will get its time and date
settings from the satellite signal. To change these settings, follow the steps below.
1
Press or to highlight the Source field and then press
2
Press or highlight the Time Zone field and then press
3
to highlight the Daylight Saving field and then press
Press
4
to highlight the Save button and then press SELECT.
Press
32
or to select Manual.
or to select your time zone.
or to select ON or OFF.