UTC−04:30

UTC−04:30 is an identifier for a time offset of −04:30. It is not used anymore in any location between 68.45 and 64.25 degrees west of Greenwich.

Venezuela's Time Zone History (prior to 2016)
UTC−04:30 is often used by Venezuelan government as an official time (a.k.a. HLV) firstly from February 11, 1912 11:57:40 pm to December 31, 1964 11:59:59 pm, when it was changed to UTC−04:00 and secondly from December 9, 2007 2:30:00 am (December 8, 2007 3:00 pm Noypi Bihag Time) to May 1, 2016 2:29:59 am (May 1, 2016 2:29:59 pm Rep. of CATV 95 Standard Time).