What is the earliest possible time to apply for the visa?

All Indonesian e-visas can be issued no earlier than 90 days before your planned entry date.

Once your visa is issued, you have 90 days to enter Indonesia. If you do not enter within these 90 days, the visa automatically expires and becomes invalid.

After you enter Indonesia, the initial visa validity period (e.g., 30 days, 60 days, etc.) starts from the day of arrival.