time zones Casablanca Morocco

Good evening, thank you to tell me if I can add time zones Casablanca Morocco on my Garmin 250, and how?
Thank you very much.

please try this file you just copy it in the directory where are the others maps .img

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Thank you for the file, you are very nice but it is not accepted by my Garmin 250 device.

thank you very much.

what means is not accepted by your device ?

It accepts only files img mapping.
thank you very much for the help.