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3 Other Features

3.1 Reader Macros

— Function: enable-read-macros

Adds @TIMESTRING and #@UNIVERSAL-TIME as reader macros.

3.2 Support for non-Gregorian Calendars

— Function: astronomical-julian-date timestamp

Returns the julian date of the date portion of timestamp.

— Function: astronomical-julian-date timestamp

Returns the modified julian date of the date portion of timestamp.