[ 源代码： jdcal ]
软件包：python3-jdcal（1.0-1.3）
Julian dates from proleptic Gregorian and Julian calendars
This module contains functions for converting between Julian dates and calendar dates.
Different regions of the world switched to Gregorian calendar from Julian calendar on different dates. Having separate functions for Julian and Gregorian calendars allow maximum flexibility in choosing the relevant calendar.