Pattern to Format Date and Time - Stefanius67/XFPDF GitHub Wiki

A date pattern is a string of characters, where specific strings of characters are replaced with date and time of the given value.

The Table below contains the characters used in patterns to show the appropriate formats for a given locale, such as yyyy for the year. Characters may be used multiple times. For example, if y is used for the year, yy might produce 99, whereas yyyy produces 1999. For most numerical fields, the number of characters specifies the field width. For example, h for the hour might produce 5, but hh produces 05. For some characters, the count specifies whether an abbreviated or full form should be used, but may have other choices, as given below.

Text within single quotes is not interpreted in any way (except for two adjacent single quotes). Otherwise all ASCII letter from a to z and A to Z are reserved as syntax characters, and require quoting if they are to represent literal characters. Two single quotes represents a literal single quote, either inside or outside single quotes.

NOTE
In addition, certain ASCII punctuation characters may become variable in the future (eg ':' being interpreted as the time separator and '/' as a date separator, and replaced by respective locale-sensitive characters in display).

Pattern	Meaning	en_US	de_DE
Date
y or yyyy	year	2022	2022
yy		22	22
QQQQ	quarter	2nd quarter	2. Quartal
Q		2	2
QQ		02	02
QQQ		Q2	Q2
M	month	3	3
MM		03	03
MMM		Oct.	Okt.
MMMM		October	Oktober
MMMMM		O	O
d	day in month	7	7
dd		07	07
e	day of week	3 (1=Sun)	2 (1=Mon)
E EE or EEE		Wed	Mi.
EEEE		Wednesday	Mittwoch
EEEEE		W	M
EEEEEE		We	Mi.
D	day of year	9	9
DD		09	09
DDD		009	009
w	week of year	5	5
ww		05	05
Time
H	hour in day (0~23)	7	7
HH		07	07
K	hour in am/pm (0~11)	7	7
KK		07	07
m	minute in hour	7	7
mm		07	07
s	second in minute	7	7
ss		07	07

For timezone formating ( z, Z, O, v, V, x, X ) see https://unicode-org.github.io