DateTime field

A date/time field allows users to enter times and dates.

Default Value: The default date value. The default date format can be relative to today’s date in +-format (for example, today defaults to today’s date, today+1 is tomorrow, today-1 is yesterday.)

Format: Specify the desired format for this field. A valid format is composed of the following pattern letters.

Note: ll lower case and upper case characters not mentioned in the table below are reserved.
Letter Date or Time Presentation Example
G Era designator Text AD
y Year Year 1996; 96
M Month in year Month July; Jul; 07
w Week in year Number 27
W Week in month Number 2
D Day in year Number 189
d Day in month Number 10
F Day of week in month Number 2
E Day in week Text Tuesday: Tue
a AM/PM marker Text PM
H Hour in day (0 – 23) Number 0
k Hour in day (1 – 24) Number 24
K Hour in am/pm (0 – 11) Number 0
h Hour in am/pm (1 – 12) Number 12
m Minute in hour Number 30
s Second in minute Number 55
S Millisecond Number 978
z Time zone General time zone Pacific Standard Time; PST; GMT-08:00
Z Time zone RFC 822 time zone -0800

Letters that are not quoted, from 'A' to 'Z' and from 'a' to 'z' are interpreted as pattern letters representing the components of a date or time string. Text can be quoted using single quotes (') to avoid interpretation. "''" represents a single quote. All other characters are not interpreted; they're simply copied into display date. Please refer to the examples below.

Pattern letters are usually repeated, as their number determines the exact final display, depending on the type of presentation we have:

Text
If the number of pattern letters is 4 or more, the full form is used; otherwise a short or abbreviated form is used if available.
Number
The number of pattern letters is the minimum number of digits, and shorter numbers are zero-padded to this amount.
Year
If the number of pattern letters is 2, the year is truncated to 2 digits; otherwise it is interpreted as a number.
Month
If the number of pattern letters is 3 or more, the month is interpreted as text; otherwise, it is interpreted as a number.
General time zone
Time zones are interpreted as text if they have names. For time zones representing a GMT offset value, the following syntax is used:
  • GMTOffsetTimeZone:
  • GMT Sign Hours : Minutes
  • Sign: one of + or -
  • Hours: Digit or Digit Digit
  • Minutes: Digit Digit
  • Digit: one of 0 1 2 3 4 5 6 7 8 9
  • Hours must be between 0 and 23, and Minutes must be between 00 and 59. Digits
  • RFC 822 time zone: For formatting, the RFC 822 4-digit time zone format is used:
  • RFC822TimeZone: Sign TwoDigitHours Minutes
  • TwoDigitHours: Digit Digit
  • TwoDigitHours must be between 00 and 23.

Examples

The following examples show how date and time patterns are interpreted if the device is set to English. The given date and time are 2001-07-04 12:08:56 local time in the U.S. PCT zone.

Date & Time Pattern Result
yyyy.MM.dd G 'at' HH:mm:ss z 2001.07.04 AD at 12:08:56 PDT
EEE, MMM d, ''yy Wed, Jul 4, '01
h:mm a 12:08 PM
hh 'o''clock' a, zzzz 12 o'clock PM, Pacific Daylight Time
K:mm a, z 0:08 PM, PDT
"yyyyy.MMMMM.dd GGG hh:mm aaa" 02001.July.04 AD 12:08 PM
"EEE, d MMM yyyy HH:mm:ss Z" Wed, 4 Jul 2001 12:08:56 -0700
"yyMMddHHmmssZ" 010704120856-0700

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