CET (Central European Time) / CEST (Central European Summer Time)
The offset is typically positive east of Greenwich (longitude 0°), negative west.
When a time zone makes clock jump forward or back at any instant in time (for example twice a year with daylight-saving time, a.k.a. summer-time period) This error is returned when either:
A date and time without associated time zone information.
In seconds since 1970-01-01 00:00:00 UTC.
The Coordinated Universal Time time time zone.
Implemented for time zones where