View Source Time and Time Correction in Erlang Extended Time Functionality As of Erlang/OTP 18 (ERTS 7.0) the time functionality was extended. This includes a new API for time and time warp modes that change the system behavior when system time changes. NoteAs of Erlang/OTP 26 (ERTS 14.0) the multi time warp mode is enabled by default. This assumes that all code executing on the system is time war