TimeZoneConvert
TimeZoneConvert[time, timezone] converts the date or time object time to the specified time zone timezone.
TimeZoneConvert[time] converts to the current $TimeZone value.
TimeZoneConvert[{time1, ..., timen}, timezone] converts time1 through timen to the specified timezone.
Examples
TimeZoneConvert[Now, "America/New_York"]Please visit the official Wolfram Language Reference for more details.