Returns a Date object that represents the same local wall-clock time as the given date, but in the specified numeric timezone.
date
The local date/time (your current local system time)
The timezone offset in hours from UTC (e.g. +2, -5.5, +9.75)
A Date object that represents that same local time in UTC terms.
Returns a Date object that represents the same local wall-clock time as the given
date, but in the specified numeric timezone.