PULSE

A pulse is 1/4 of a second.

Unit          Pulses           Seconds
1 pulse       1 pulse          1/4 second
1 round       12 pulses        3 seconds
1 heartbeat   12 pulses        3 seconds
1 turn        30 pulses        7.5 seconds
1 tick        300 pulses       75 seconds / 1.25 real minutes
1 mud hour    300 pulses       75 seconds / 1.25 real minutes
1 mud day     7200 pulses      1800 seconds / 30 real minutes
1 mud month   252000 pulses    63000 seconds / 17.5 real hours
1 mud year    4284000 pulses   1071000 seconds / 12.3 real days

Pulse is also a social: