Default snooze duration

By clicking the snooze button (Screenshot - b4d3ebba69ef48ca6a8624bf2b75ce3e - Gyazo) - not selecting a duration from the drop down - what is the default duration of the snooze?

is it a rolling value (eg 1 hour from now) or is it the ‘later today’ value from the drop down?

It is the same as the Tomorrow option.

thanks. are there any plans to allow for editing the durations at all ?