Java – Date, Time, SimpleDateFormat, String convert to Date

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Simple DateFormat format codes:

To specify the time format use a time pattern string. In this pattern, all ASCII letters are reserved as pattern letters, which are defined as the following:

Character Description Example
G Era designator AD
y Year in four digits 2001
M Month in year July or 07
d Day in month 10
h Hour in A.M./P.M. (1~12) 12
H Hour in day (0~23) 22
m Minute in hour 30
s Second in minute 55
S Millisecond 234
E Day in week Tuesday
D Day in year 360
F Day of week in month 2 (second Wed. in July)
w Week in year 40
W Week in month 1
a A.M./P.M. marker PM
k Hour in day (1~24) 24
K Hour in A.M./P.M. (0~11) 10
z Time zone Eastern Standard Time
Escape for text Delimiter
Single quote `

Date and Time Conversion Characters:

Character Description Example
c Complete date and time Mon May 04 09:51:52 CDT 2009
F ISO 8601 date 2004-02-09
D U.S. formatted date (month/day/year) 02/09/2004
T 24-hour time 18:05:19
r 12-hour time 06:05:19 pm
R 24-hour time, no seconds 18:05
Y Four-digit year (with leading zeroes) 2004
y Last two digits of the year (with leading zeroes) 04
C First two digits of the year (with leading zeroes) 20
B Full month name February
b Abbreviated month name Feb
n Two-digit month (with leading zeroes) 02
d Two-digit day (with leading zeroes) 03
e Two-digit day (without leading zeroes) 9
A Full weekday name Monday
a Abbreviated weekday name Mon
j Three-digit day of year (with leading zeroes) 069
H Two-digit hour (with leading zeroes), between 00 and 23 18
k Two-digit hour (without leading zeroes), between 0 and 23 18
I Two-digit hour (with leading zeroes), between 01 and 12 06
l Two-digit hour (without leading zeroes), between 1 and 12 6
M Two-digit minutes (with leading zeroes) 05
S Two-digit seconds (with leading zeroes) 19
L Three-digit milliseconds (with leading zeroes) 047
N Nine-digit nanoseconds (with leading zeroes) 047000000
P Uppercase morning or afternoon marker PM
p Lowercase morning or afternoon marker pm
z RFC 822 numeric offset from GMT -0800
Z Time zone PST
s Seconds since 1970-01-01 00:00:00 GMT 1078884319
Q Milliseconds since 1970-01-01 00:00:00 GMT 1078884319047


SimpleDateFormat millisecFormat = new SimpleDateFormat("hh:mm:ss.mmm dd/MM/yy");
Date date = millisecFormat.parse("16:15:00.000 12/08/2009");

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