diff options
Diffstat (limited to 'lisp')
| -rw-r--r-- | lisp/calendar/time-date.el | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lisp/calendar/time-date.el b/lisp/calendar/time-date.el index eeb09926a6e..125f9acc705 100644 --- a/lisp/calendar/time-date.el +++ b/lisp/calendar/time-date.el @@ -527,6 +527,21 @@ TIME is modified and returned." time) +(defun decoded-time-period (time) + "Interpret DECODED as a period and return its length in seconds. +For computational purposes, years are 365 days long and months +are 30 days long." + (+ (if (consp (decoded-time-second time)) + ;; Fractional second. + (/ (float (car (decoded-time-second time))) + (cdr (decoded-time-second time))) + (or (decoded-time-second time) 0)) + (* (or (decoded-time-minute time) 0) 60) + (* (or (decoded-time-hour time) 0) 60 60) + (* (or (decoded-time-day time) 0) 60 60 24) + (* (or (decoded-time-month time) 0) 60 60 24 30) + (* (or (decoded-time-year time) 0) 60 60 24 365))) + (provide 'time-date) ;;; time-date.el ends here |