Latvian Summer Time was first introduced 35 years ago, but since 1997 it has been in force from the last Sunday in March until the last Sunday in October, when it is time to wind the clock back again.
In recent years, there has been considerable debate in society about the need or otherwise for daylight saving time, but for now the system remains in place.
So last thing on Sunday night (or first thing Monday morning), remember to put the clock forward an hour if it doesn't change itself automatically.
