You can format time values in Looker charts using the following syntax. You can also string these elements together to create formats of your choosing.
Format Type
Description
Use This Expression
Time
Time
Milliseconds as a decimal number, i.e. 000 to 999
%L
Time
Second as a two-digit number, i.e. 00 to 59
%S
Time
Minute as a two-digit number, i.e. 00 to 59
%M
Time
Hour as a decimal number (24-hour clock), i.e. 00 to 23
%H
Time
Hour as a decimal number (12-hour clock), i.e. 01 to 12
%I
Time
Either AM or PM
%p
Date
Date
Day of the year as a decimal number, i.e. 001 to 366
%j
Date
Zero-padded day of the month, i.e. 01 to 31
%d
Date
Space-padded day of the month (equivalent to
%_d
), i.e. 1 to 31%e
Date
Full weekday name, i.e. Monday, Tuesday, Wednesday
%A
Date
Abbreviated weekday name (3-letter), i.e. Mon, Tue, Wed
%a
Date
Weekday as a decimal number (Sunday as the first day of the week), i.e. 0 to 6
%w
Week
Week
Week number of the year (Sunday as the first day of the week) as a two-digit number, i.e. 00 to 53
Note
: %U
uses the ISO week date
standard offset by one day.
%U
Week
Week number of the year (Monday as the first day of the week) as a two-digit number, i.e. 00 to 53
Note
: %W
uses the ISO week date
standard.
%W
Month
Month
Two-digit month, i.e. 01 through 12 (1-12 format not currently available)
%m
Month
Abbreviated month name, i.e. Jan, Feb, Mar
%b
Month
Full month name, i.e. January, February, March
%B
Year
Year
Two-digit year, i.e. 00 to 99
%y
Year
Four-digit year, i.e. 2000, 2001, 2002
%Y
Combination
Combination
Full time, of the form "%H:%M:%S", i.e. 23:56:12
%X
Combination
Full date, of the form "%m/%d/%Y", i.e. 01/27/2014
%x
Combination
Datetime format with the following: "%a %b %e %H:%M:%S %Y", i.e. Mon Jan 1 23:56:04 2014
%c
