Generally, the embodiments are directed to circuits and methods for time
stamping an event at a fraction of a clock cycle. A time stamping circuit
comprises two or more detection circuits. The detection circuits receive
an event-in signal and generate event signals based on a clock phase at
which the event-in signal was received. A decoder receives the event
signals and outputs an event-out signal and a time stamp that represents
the phase at which the event-in signal was detected. By time stamping the
event-in signal to a phase division, the time stamping circuit detects
event signals that occur at a rate faster than the clock cycle.