For the holy month of Ramadan the RTA may change the timings of some of the public transport that runs in Dubai. Often the hours of the Dubai Metro are extended slightly but usually the hours for the Dubai Tram remain the same as usual.
The RTA has announced that for Ramadan 2017 (which is expected to begin on Saturday 27th May 2017), the Dubai Tram will have the following operating hours:
Saturday to Thursday: from 6.30am to 1.00am
Friday: from 9.00am to 1.00am the following day.