DescriptionTimezonesID.svg English: Timezones in Indonesia Date 30 June 2020 Source Own work based on File:Indonesia provinces outline map.svg Author Flix11
https://collections.lib.uwm.edu/digital/iiif/agdm/863/full/full/0/default.jpg Date 3 June 2023 Source Own work based on File:TimezonesID.svg Author Davidelit