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}

1. 2011
2. 2012
3. 2013
4. 02
5. Feb
6. 09
7. 20120209
8. 2012-02-09
9. 10
10. 11

#(: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:)

1. Feb 09 is today
2. Feb 09 and later
5. this month until Feb 09
6. this month until Feb 10
7. this month until Feb 11
8. Feb 09 and before
9. Feb 10 and before
10. Feb 11 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:)

7. 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:)

1. Not February 2013 (yet or anymore!)
2. Not February 2013 (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:)

1. First half of year