Dollar Universe has out-of-date timezone data for Casablanca.
DST date has changed since October 2018.
Release : 6.10
Component : DOLLAR UNIVERSE
This is a bug.
Workaround:
Timezone files from Dollar Universe are based on IANA (files in folder <duas_folder>/bin/zoneinfo) which is the standard on Linux systems nowadays.
From a recent Linux version, copy /usr/share/zoneinfo/Africa/Casablanca file and overwrite the one in Dollar Universe's ../bin/zoneinfo/Africa folder.
Resolution:
This problem was fixed in DUAS v6.10.101
DST date has changed since October 2018.
https://en.wikipedia.org/wiki/Daylight_saving_time_in_Morocco
actual time and date for Morocco:
https://www.timeanddate.com/time/change/morocco/casablanca