SparkFun gator:RTC Hookup Guide
Power and Connections
Check that your power and data connections are correct and that the power
VOUT switch is in the
ON position on the gator:bit (v2).
The RTC only reports the time down to 1 second intervals and cannot return fractions of a second. It will report the lower value between seconds until the next second is hit (e.g. at 15.6 seconds past the minute is will report 15 seconds until the the 16th second is reached).