640 is an area code located in the state of New Jersey, US. The largest city it serves is Trenton.
|Standard time:||UTC/GMT -5:00 hours|
|No daylight saving time at the moment|
DST starts on Sunday 13 March 2022, 02:00
DST ends on Sunday 06 November 2022, 02:00
The 640 area code lies within the Eastern Time (ET)EST - Eastern Standard Time
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