Greenwich Mean Time is the standard time at the Royal Observatory in Greenwich, London.

I always forget to change my clocks when daylight saving time starts.

I will be available for a meeting at 9 AM Eastern Daylight Time.

I have a meeting at 9 AM Eastern Standard Time.

I will be arriving in Los Angeles at 3 PM Pacific Daylight Time.

I will call you at 9 AM Pacific Standard Time.

I will call you at 10 AM Mountain Daylight Time.

I will call you at 10 AM Mountain Standard Time.

For the first time in a while , I slept for 8 hours straight and woke up feeling refreshed.

It is a matter of time before we find a solution to this problem.