elpaso/Rtc_Pcf8563 — pull request #12 by cevich (2014-12-07 13:49:23+00:00)
Title: Leap Days between

Depends on #11

This allows calculating the number of additional leap-days you need to add when finding the duration between two time spans. Additionally, it could be used to convert any date/time from this device into an absolute seconds-since-epoch value. The reverse is also possible, converting epoch-seconds back into date/time represented on this device.