hms from package of the same
name (conversion to/from).nth_dw_after and nth_dw_before
calculating the nth occurrence of a day of week after or before given
date.as.tind method for multi-column data frames is
significantly faster in the following cases:
tind constructor when all columns are
numeric,date_time when there are two columns and
one represents dates and the other times of day.First CRAN release.