[time-nuts] GPS seconds conversion on an Arduino

Tony Finch dot at dotat.at
Mon May 15 09:34:39 UTC 2017


Tom Van Baak <tvb at LeapSecond.com> wrote:
>
> 32-bit integers is sufficient. Use days instead of seconds. Use MJD
> instead of JD. Here's an example:
>
> Step 1, convert calendar date to MJD, and then to GPS day:

Mark was asking for the reverse calculation, which is a bit trickier :-)

My version is at http://fanf.livejournal.com/93771.html

Wikipedia has a version
https://en.wikipedia.org/wiki/Julian_day#Julian_or_Gregorian_calendar_from_Julian_day_number

Tony.
-- 
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