Just received this in a message from a friend trying to determine what time we meet this coming Sunday.
星期天几点开踢? 夏时制开始
Daylight savings starts early this Sunday at 2am.
So what is the purpose of 制 in the phrase 夏时制开始?
I see from wiktionary that 制 can have the meaning of "establish" so is 制 included to indicate that daylight savings is starting on that particular day (which is Sunday by context of the previous sentence)?