US: Daylight Saving Time (DST)
The letters “DT” (Daylight Saving Time) or “ST” (Standard Time) is displayed when adjustment for Daylight Saving Time is active.
The Transmitter is set to automatically make adjustments for DST. If neither “DT” nor “ST” are displayed, then DST does not apply
and the DST/ST switch is in the UP position.
The adjustment to Daylight Saving Time and back to Standard Time takes effect at 2:00 AM on the day of change.
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