I read that for increment games the way to convert them to non-increment games for the purpose of classification by time control goes as follows:

• Original time + Increment x 40 = Time used to classify

Eg 10min + 3sec increment is

• 10min + 3sec x 40 = 10min + 2min = 12min

So, if according to some federation or website, 11min is the cut-off between rapid & blitz, then 10min+0sec increment would be blitz while 10min+3sec increment would be rapid. But besides classification, every increment game can then be converted into a non-increment game as such.

Question: What's the conversion for time controls that give time bonuses after reaching a certain move into time controls are just X min + 0 increment (for the whole game) ?

Examples:

2022 Candidates:

120 minutes for the first 40 moves, 60 minutes for the next 20 moves, and then 15 minutes for the rest of the game, plus a 30-second increment per move starting from move 61.

2023 Tata Steel:

The time control is 100 minutes for 40 moves followed by 50 minutes for 20 moves, then 15 minutes for the rest of the game, with a 30-second increment per move from move one

2019 WFRCC:

45 minutes for 40 moves plus 15 minutes for the rest, without increment

2022 WFRCC:

The time control (for both the group stages and the knockouts) will be 25 minutes per player for the first 30 moves, after which each player will receive additional 5 minutes on the clock and an increment of 5 seconds per move starting from move 31.