today = +0d:yyyy-MM-dd
yesterday = -1d:yyyy-MM-dd
tomorrow = +1d:yyyy-MM-dd
next month = +1m:yyyy-MM
a month later = +1m:yyyy-MM
last month = -1m:yyyy-MM
a month ago = -1m:yyyy-MM
next year = +1y:yyyy
last year = -1y:yyyy
past year = -1y:yyyy
a year ago = -1y:yyyy-MM-dd
a year earlier = -1y:yyyy-MM-dd
one year ago = -1y:yyyy-MM-dd
one year earlier = -1y:yyyy-MM-dd
year earlier = -1y:yyyy-MM-dd
{number} years ago = -{1}y:yyyy
{number} years later = -{1}y:yyyy
{number} months ago = -{1}y:yyyy
{number} months later = -{1}y:yyyy
{month} {year} = {2}-{1}-1:yyyy-MM
{month} {day} , {year} = {4}-{1}-{2}:yyyy-MM-dd
{year} = {1}-01-01:yyyy
{number} / {number} / {year} = {5}-{1}-{3}:yyyy-MM-dd
this month = +0m:yyyy-MM
this year = +0y:yyyy
{regex:(?:earlier|later)} this month = +0m:yyyy-MM

Jet.Time.rules.MonthAndDayRule
Jet.Time.rules.DayOfWeekRule
Jet.Time.rules.LastDayOfWeekRule
Jet.Time.rules.LastMonthRule
Jet.Time.rules.MonthRule
Jet.Time.rules.ThisMonthRule
Jet.Time.rules.SimpleDigitsRule
Jet.Time.rules.FourDigitsRule
Jet.Time.rules.CenturyRule
Jet.Time.rules.TimeWithTimeZoneRule
Jet.Time.rules.TimeWithAMPMRule
Jet.Time.rules.MonthAndNextOrLastYearRule
Jet.Time.rules.ThisWeekRule
Jet.Time.rules.LastWeekRule
Jet.Time.rules.NextWeekRule