is_before Modifier

Returns true if a date variable is before another date. That second date can be the name of another variable or a literal date string.

start_date: January 17 2015
end_date: December 1 2015

{{ if end_date | is_before($start_date) }}
{{ if start_date | is_before(2014) }}
{{ if start_date | is_before($end_date) }}

false
false
true