What time zone is PDF?
Pacific Daylight Time (PDT) is 7 hours behind Coordinated Universal Time (UTC). This time zone is a Daylight Saving Time time zone and is used in: North America.
What is my tz database?
The tz database is a collaborative compilation of information about the world's time zones, primarily intended for use with computer programs and operating systems. Paul Eggert is its current editor and maintainer, with the organizational backing of ICANN.
What zone is GMT?
Greenwich Mean Time (GMT) The "Greenwich Mean Time" refers to the time zone at the zero degree of longitude that runs through the London suburb of Greenwich, from which it takes its name. It is also called the zero meridian.