almanac_since()
represents the defaultsince
date used in almanac. It defaults to1900-01-01
, a Monday.almanac_until()
represents the defaultuntil
date used in almanac. It defaults to2100-01-01
, a Friday.
The choice of since
and until
are somewhat arbitrary, but should generate
a useful event set range for most rschedules. If you need to adjust the
defaults, then you should supply the since
and until
arguments directly
to the rrule generators, like yearly()
and weekly()
.
The since
default is particularly important for weekly recurrence rules,
where the since
date represents the anchor point to begin counting from.
See recur_on_day_of_week()
for examples of how to adjust this.