Monday, April 9, 2012

NSDateFormatter Specifiers - iOS SDK

a:    AM/PM
A:    0~86399999 (Millisecond of Day)

c/cc:    1~7 (Day of Week)
ccc:    Sun/Mon/Tue/Wed/Thu/Fri/Sat
cccc:    Sunday/Monday/Tuesday/Wednesday/Thursday/Friday/Saturday

d:    1~31 (0 padded Day of Month)
D:    1~366 (0 padded Day of Year)

e:    1~7 (0 padded Day of Week)
E~EEE:    Sun/Mon/Tue/Wed/Thu/Fri/Sat
EEEE:    Sunday/Monday/Tuesday/Wednesday/Thursday/Friday/Saturday

F:    1~5 (0 padded Week of Month, first day of week = Monday)

g:    Julian Day Number (number of days since 4713 BC January 1)
G~GGG:    BC/AD (Era Designator Abbreviated)
GGGG:    Before Christ/Anno Domini

h:    1~12 (0 padded Hour (12hr))
H:    0~23 (0 padded Hour (24hr))

k:    1~24 (0 padded Hour (24hr)
K:    0~11 (0 padded Hour (12hr))

L/LL:    1~12 (0 padded Month)
LLL:    Jan/Feb/Mar/Apr/May/Jun/Jul/Aug/Sep/Oct/Nov/Dec
LLLL:    January/February/March/April/May/June/July/August/September/October/November/December

m:    0~59 (0 padded Minute)
M/MM:    1~12 (0 padded Month)
MMM:    Jan/Feb/Mar/Apr/May/Jun/Jul/Aug/Sep/Oct/Nov/Dec
MMMM:    January/February/March/April/May/June/July/August/September/October/November/December

q/qq:    1~4 (0 padded Quarter)
qqq:    Q1/Q2/Q3/Q4
qqqq:    1st quarter/2nd quarter/3rd quarter/4th quarter
Q/QQ:    1~4 (0 padded Quarter)
QQQ:    Q1/Q2/Q3/Q4
QQQQ:    1st quarter/2nd quarter/3rd quarter/4th quarter

s:    0~59 (0 padded Second)
S:    (rounded Sub-Second)

u:    (0 padded Year)

v~vvv:    (General GMT Timezone Abbreviation)
vvvv:    (General GMT Timezone Name)

w:    1~53 (0 padded Week of Year, 1st day of week = Sunday, NB: 1st week of year starts from the last Sunday of last year)
W:    1~5 (0 padded Week of Month, 1st day of week = Sunday)

y/yyyy:    (Full Year)
yy/yyy:    (2 Digits Year)
Y/YYYY:    (Full Year, starting from the Sunday of the 1st week of year)
YY/YYY:    (2 Digits Year, starting from the Sunday of the 1st week of year)

z~zzz:    (Specific GMT Timezone Abbreviation)
zzzz:    (Specific GMT Timezone Name)
Z:    +0000 (RFC 822 Timezone)

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