Method Calendar.Time.TimeofDay()->julian_day()
- Method julian_day
 julian_day()float- Description
 - 
This calculates the corresponding julian day, from the time range. Note that the calculated day is the beginning of the period, and is a float - julian day standard says .00 is midday, 12:00 pm.
 - Note
 - 
Normal pike (ie, 32 bit) floats (without --with-double-precision) has a limit of about 7 digits, and since we are about julian day 2500000, the precision on time of day is very limited.