PLANET DSP-1000 - Manual (Page 88)

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5. Every day at midnight, the DSP-1000 will automatically
refresh the content and if there is a specific playlist found for that
day, it will rename the file to play.lst and use it for playback
throughout the day. If the unit is not running at midnight, it will
refresh the content as soon as it’s started.
NOTE:
Always use 8 numbers for the date (example: 20070408). To
use the daily playlist function, make sure the DSP-1000 has
access to a NTP server to synchronise the time and date.
2007/01/01 2007/01/02 2007/01/03 2007/01/04
; 20070101.lst 20070102.lst ; 20070104.lst
If there is no particular playlist for that day, the DSP-1000 will pause at the
library screen and continue playback as soon as it can find a new playlist
for that particular day.
4.5.5 Playlist by Date&Time
In order to use different playlists throughout the day and depending on the
date without having to manually update them, you can create playlists
based on the date&time.
Example: 20070101_0900_1200.lst (year, month, day, time)
1. Create a playlist as usual.
2. Rename the file from play.lst to the date&time when that list
should be used. As an example, for the files to be played from
9AM to 6PM on January 1
st
2007, rename the file
20070101_0900_1800.lst. Always us 8 numbers for the date
and 4 numbers for the time with an underscore in between.