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Diffstat (limited to 'doc/lispref')
| -rw-r--r-- | doc/lispref/os.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/lispref/os.texi b/doc/lispref/os.texi index 7c8b35236cd..ea27af8edb2 100644 --- a/doc/lispref/os.texi +++ b/doc/lispref/os.texi @@ -2104,6 +2104,14 @@ This function returns the number of days between the beginning of year The operating system limits the range of time and zone values. @end defun +@defun days-to-time days +This is not quite the inverse of the @code{time-to-days} function, as +it uses the Emacs epoch (instead of the year 1) for historical +reasons. To get the inverse, subtract @code{(time-to-days 0)} from +@var{days}, in which case @code{days-to-time} may return @code{nil} if +@var{days} is negative. +@end defun + @defun time-to-day-in-year time-value This returns the day number within the year corresponding to @var{time-value}, assuming the default time zone. |