Not perfectly on time; possibly somewhat late, but no harm is done as a result. The implication is that there is no need to be exactly on time, and starting a little late is acceptable.

The term comes from Jewish culture, which is often relaxed about punctuality.

When an event is schedule to take place at 2:00 Jewish time, it could be at 2:05, 2:12, 2:15, or even 2:35, and everyone is satisfied.
The wedding will start at 6:00 PM Jewish time.

We will meet in the lobby at 4:30 Jewish time.
by Bed time August 9, 2010
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A standard of time, normally being about 26 minutes after the rest of the people within your time zone.
Dude, WTF? Can't you make it to work on time? Are all your clocks set on Jewish Standard Time?
by Sgt. I.M. Nobody October 5, 2008
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Being late to an important event.
also known as Colored People Time
'Dude he was supposed to be hear an hour ago'
"Yeah, hes running on Jewish Standard Time (JST)(CPT)"
by PoPoPolski February 4, 2010
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