is 15:44:00 pm
on Wednesday 29 March 2017
in San Francisco (UTC−7)
-
17:44pm on Wednesday 29 March 2017
in Chicago (UTC−5)
-
18:44pm on Wednesday 29 March 2017
in New York (UTC−4)
-
23:44pm on Wednesday 29 March 2017
in London (UTC+1)
-
00:44am on Thursday 30 March 2017
in Berlin (UTC+2)
-
04:14am on Thursday 30 March 2017
in Mumbai (UTC+5.5)
-
09:44am on Thursday 30 March 2017
in Sydney (UTC+11)
2017-03-29T22:44:00Z in RFC33991490827440 in Unix time-
and 22:44pm on Wednesday 29 March 2017
in UTC.
(assuming the server uses UTC, which it really really should)