Here is the full list of all 39 Time in Time achievements.
Spend 60 seconds
Spend 1000 seconds
Spend 2500 seconds
Beat Level 1 just right.
Beat Level 2 just right.
Beat Level 3 just right.
Beat Level 4 just right.
Beat Level 5 just right.
Beat Level 6 just right.
Beat Level 7 just right.
Beat Level 8 just right.
Beat Level 9 just right.
Beat Level 10 just right.
Beat Level 11 just right.
Beat Level 12 just right.
Beat Level 13 just right.
Beat Level 14 just right.
Beat Level 15 just right.
Beat Level 16 just right.
Beat Level 17 just right.
Beat Level 18 just right.
Beat Level 19 just right.
Beat Level 20 just right.
Beat Level 21 just right.
Beat Level 22 just right.
Beat Level 23 just right.
Beat Level 25 just right.
Beat Level 26 just right.
Beat Level 27 just right.
Beat Level 28 just right.
Beat Level 29 just right.
Beat Level 30 just right.
Beat all levels.
Beat a workshop level.
Load a custom shader.
Load a custom music.
Dude, seconds were for the whole family..
Beat time with milliseconds remeaning.