UTC+01:00 is a time offset that adds 1 hour to Coordinated Universal Time (UTC).
This time is used in:
In ISO 8601 the associated time would be written as 2016-02-01T01:12:29+01:00.
UTC−01:00 is an identifier for a time offset from UTC of −01. This time is used in:
UTC+01:30 is an identifier for a time offset from UTC of +01:30. It is no longer in use. It was used by the then-governments of the Orange Free State, Transvaal and the Cape Colony from 1892 to 1903 in what is now South Africa. This time was also used briefly by the former German South-West Africa (present-day Namibia).