Track or playlist release date keeps changing
Why is my scheduled release date wrong?
If the release date that you have set for your scheduled release is wrong or keeps changing, this is because you are in a time zone outside of GMT. As the site is based in GMT, any information you put in will be reflected in this time zone.
You can use this Time Zone calculator to calculate your release date to a GMT value: https://www.timeanddate.com/worldclock/converter.html