You can configure EXT-X-PROGRAM-DATE-TIME tags for the output media manifest of HLS streams to associate the first media segment with an absolute date and time. The format is as follows:
1#EXT-X-PROGRAM-DATE-TIME:<date-time-msec>
The format of date-time-msec is ISO/IEC 8601:2004 [ISO_8601] (YYYY-MM-DDThh:mm:ss.SSSZ). It must specify the time zone and have a millisecond precision.
Insert PDT tags in HLS streams. Find the target channel and click Edit to go to the Output Group Setting page. You can configure EXT-X-PROGRAM-DATE-TIME tags only if the Output Group Type is HLS, HLS_ARCHIVE, or HLS_STREAM_PACKAGE.
In the Segment Information area, toggle on PdtInsertion and specify the interval (seconds) to insert the tags.
After the configuration, start the channel. When input is available, you will see PDT tags in the output M3U8 streams, which are inserted every 600 seconds.
