Credits time is included as is, it accounts for all levels completed since the most recent main menu, excluding levels 30 and 31

Every time levels 30 and 31 are played, the time between level 30 loading in and the credits loading in is included, by using the Tab timer

In the event of going back to the main menu, all in game times for the completed levels before exiting to the main menu are included

In the event of quitting out of a level, the time between that level loading in and your tank disappearing into a portal on the start level is included, by using the Tab timer

If the boss gauntlet is played, its final time is included, along with levels 30 and 31 with the same procedure as before

If tutorial level 4 is played, it's time is included, by using the Tab timer