alevt-date (1) Linux Manual Page
alevt-date – display/set time received via Teletext Synopsisalevt-date [options] Descriptionalevt-date displays the time received from a Teletext source. It can be used to set the system time. The date is not interpreted (not even transmitted on most channels). So it allows only adjustment of +/-12 hours. The default allowed adjustment is limited to +/-2 hours…
