- Blizzard's Advanced Time and Environment System (ATES) (RMXP)
- Day/Night Evented System (RMVX)
- Kylock's Time System (RMVX)
- Rafidelis Advanced Time System (RMVX)
- Real Time KTS Mod
- Trickster's Time System (RMXP)
These include the ability to store time as variables and time-based events triggers.