# femtotime femtotime is a library for time tracking which uses 128 bit integers to allow tracking time with femtosecond resolution. ## About The `femtotime` API consists of 3 classes: `utc_time_t`, `gps_time_t`, and `duration_t`. These classes all contain numerous methods for querying the time, and converting timestamps between representations. ## History The idea for this program came from something said by Keith Packard in a conversation with Mark Galassi, and was implemented by Patrick Norton. Approved for LANL public release: C22080.