IfDate

#(:lastyear:{(ftime %Y when="last year")}:) {$:lastyear}
#(:year:{(ftime %Y)}:) {$:year}
#(:nextyear:{(ftime fmt=%Y when="next year")}:) {$:nextyear}
#(:month:{(ftime %m)}:) {$:month}
#(:monthlit:{(ftime %b)}:) {$:monthlit}
#(:day:{(ftime %d)}:) {$:day}
#(:today:{(ftime fmt="%Y%m%d")}:) {$:today}
#(:tooday:{(ftime %F)}:) {$:tooday}
#(:tomorrow:{(ftime %d when="tomorrow")}:) {$:tomorrow}
#(:nextday:{(ftime %d when="2 days")}:) {$:nextday}

2023
2024
2025
09
Sep
19
20240919
2024-09-19
20
21

#(:if date {$:tooday}:) {$:monthlit} {$:day} is today (:ifend:)
#(:if date {$:today}..:) {$:monthlit} {$:day} and later (:ifend:)
#(:if date {(ftime week %F when=tomorrow)}..:) {$:monthlit} {$:tomorrow} and later (:ifend:)
#(:if date {(ftime week %F when="2 days")}..:) {$:monthlit} {$:nextday} and later (:ifend:)
#(:if date {$:year}/{$:month}/01..{$:year}/{$:month}/{$:day}:) this month until {$:monthlit} {$:day} (:ifend:)
#(:if date {$:year}/{$:month}/01..{$:year}/{$:month}/{$:tomorrow}:) this month until {$:monthlit} {$:tomorrow} (:ifend:)
#(:if date {$:year}/{$:month}/01..{$:year}/{$:month}/{$:nextday}:) this month until {$:monthlit} {$:nextday} (:ifend:)
#(:if date ..{$:year}.{$:month}.{$:day}:) {$:monthlit} {$:day} and before (:ifend:)
#(:if date ..{$:year}.{$:month}.{$:tomorrow}:) {$:monthlit} {$:tomorrow} and before (:ifend:)
#(:if date ..{$:year}.{$:month}.{$:nextday}:) {$:monthlit} {$:nextday} and before (:ifend:)

Sep 19 is today
Sep 19 and later
this month until Sep 19
this month until Sep 20
this month until Sep 21
Sep 19 and before
Sep 20 and before
Sep 21 and before

#(:if date ..{$:year}:12:31:) anytime up to the end of {$:year} (:ifend:)
#(:if date ..y{$:lastyear}m12d31:) anytime up to last year ({$:lastyear}) (:ifend:)
#(:if date {$:nextyear}0101..{$:nextyear}1231:) anytime next year ({$:nextyear}) (:ifend:)
#(:if date m{$:monthlit}:) {$:monthlit} (:ifend:)
#(:if date m{$:monthlit}..m12:) {$:monthlit} to december (:ifend:)
#(:if date m12d25:) christmas day (:ifend:)
#(:if ! date m12d25:) not xmas day (:ifend:)
#(:if date y{$:year}:) year of {$:year} (:ifend:)

not xmas day

#(:if !date {$:nextyear}-02-01..{$:nextyear}-02-28:) Not February {$:nextyear} (yet or anymore!) (:ifend:)
#(:if !date y{$:nextyear}m2:) Not February {$:nextyear} (yet or anymore!) (:ifend:)
#(:if date {$:nextyear}-03-01..{$:nextyear}-03-31:) March {$:nextyear} (:ifend:)

Not February 2025 (yet or anymore!)
Not February 2025 (yet or anymore!)

#(:if date {$:year}-01-01..{$:year}-06-30:)First half of year (:ifend:)
#(:if date {$:year}-07-01..{$:year}-12-31:)Second half of year (:ifend:)

Second half of year