This template calculates the date/time difference between two dates. Dates in the Gregorian calendar from 9999 BCE to 9999 CE are supported. The calendar is proleptic—it is assumed to apply at all times with no irregularities.

• {{time interval|date1|date2|options}}

There are two positional arguments: date1 and date2. The default for each is the current date and time.

The result displays text representing the time interval from date1 to date2 (date2 − date1).

Dates are UTC—local times and time zones are not supported.

Dates are checked for validity. For example, 29 February 2000 is accepted, but 29 February 1900 is not a valid date.

Each date can include an era or a time, and a variety of formats are accepted. Examples of valid dates are:

1900-02-01

1900-2-1

1900-02-01 14:45

1 FEB 1900

February 1, 1900

February 1 1900 14:45

2:45 pm February 1 1900

1 February 1900 2:45 p.m.

BC 1 Feb 120

Examples:

• {{time interval|1 Jan 2001|March 4, 2002}} → 1 year, 2 months and 3 days
• {{time interval|1 Jan 2001|March 4, 2002|abbr=on}} → 1y 2m 3d
• {{time interval|B.C.E. 1 Feb 120|28 FEB 1900}} → 2019 years and 27 days

Parameter	Description
abbr=off	Unit names in full (default): year, month, day, hour, minute.
abbr=on	Units shown as a single letter with no space between number and unit: y, m, d, h, m.
disp=age	If no show has been entered, years are displayed if the age is above 3 years, years and months from 1 to 3 years, or months and days for under 1 year. Sets sep=space by default. This is compatible with {{age for infant}}.
disp=raw	Display numbers only with sep=space.
duration=on	Period is a duration (has an extra day to include the end date).
format=commas	Numbers over 999 are formatted with commas.
format=raw	Use a hyphen (-) to indicate a negative date difference instead of a minus (−); a hyphen may allow the result to be used in a calculation.
sep=comma	Separator between items is a comma: 1 year, 2 months, 3 days. The default is 1 year, 2 months and 3 days.
sep=,	Same as sep=comma.
sep=serialcomma	Use a serial comma: 1 year, 2 months, and 3 days.
sep=space	Use a space: 1 year 2 months 3 days.
sc=y	Change the default separator to use a serial comma. Also accepts sc=yes and sc=on.
show=y	years
show=ym	years and months
show=ymd	years, months and days (default)
show=ymw	years, months and weeks
show=ymwd	years, months, weeks and days
show=yd	years and days
show=m	months
show=md	months and days
show=w	weeks
show=wd	weeks and days
show=d	days
show=dh	days and hours
show=dhm	days, hours and minutes
show=dhms	days, hours, minutes and seconds
show=ymdh	ymd + hours
show=ymdhm	ymd + hours and minutes
show=ymwdh	ymwd + hours
show=ymwdhm	ymwd + hours and minutes
show=h	hours (result would be 48 hours for a difference of 2 days)
show=hm	hours and minutes
show=hms	hours, minutes and seconds
show=M	minutes (uppercase M because m is months)
show=s	seconds
round=on	Round the least-significant unit specified with the show= parameter.
round=months	Round to nearest month using show=ym.
round=weeks	Round to nearest week using show=ymw.
round=days	Round to nearest day using show=ymd.
round=hours	Round to nearest hour using show=ymdh.
sortable=on	Output a hidden sort key based on the number of days in the date difference (includes a fraction of a day to handle time differences).
sortable=off	No sort key (default).
sortable=debug	Output a visible sort key for testing.