Monday, March 23, 2015 (23:04:53) GMT
Monday, March 23, 2015 (18:04:53) CST
Monday, March 23, 2015 (6:04:53 PM) CST
Or, depending on DST (GMT is affected by DST, UTC is not):
Monday, March 23, 2015 (17:04:53) CST
Monday, March 23, 2015 (5:04:53 PM) CST