Forum Moderators: phranque
However, the rules are set to change next year. Congress approved a change to daylight savings that will start daylight time on the second Sunday in March instead of the first Sunday in April; and will return to standard time on the first Sunday in November instead of the last Sunday in October.
Presumably, each OS vendor will release a patch so that PC clocks will change on the new day, so if your site relies on client-side time to display an hour, you're OK.
But, if you're using homebrewed or third-party code to figure out local time from universal time, you might want to start looking into making the appropriate changes so everything works correctly next spring and fall.