Who Moved The Cheese?
For those looking to find the date formats associated with data models, here is a big hint for where to find them:
http://ext.load.hu/ext-4.0-pr5/docs/api/Ext.util.Date.html
And, if that moves again, below is a cut and paste of the date formats as of now.
Format Description Example returned values ------ ----------------------------------------------------------------------- ----------------------- d Day of the month, 2 digits with leading zeros 01 to 31 D A short textual representation of the day of the week Mon to Sun j Day of the month without leading zeros 1 to 31 l A full textual representation of the day of the week Sunday to Saturday N ISO-8601 numeric representation of the day of the week 1 (for Monday) through 7 (for Sunday) S English ordinal suffix for the day of the month, 2 characters st, nd, rd or th. Works well with j w Numeric representation of the day of the week 0 (for Sunday) to 6 (for Saturday) z The day of the year (starting from 0) 0 to 364 (365 in leap years) W ISO-8601 week number of year, weeks starting on Monday 01 to 53 F A full textual representation of a month, such as January or March January to December m Numeric representation of a month, with leading zeros 01 to 12 M A short textual representation of a month Jan to Dec n Numeric representation of a month, without leading zeros 1 to 12 t Number of days in the given month 28 to 31 L Whether it's a leap year 1 if it is a leap year, 0 otherwise. o ISO-8601 year number (identical to (Y), but if the ISO week number (W) Examples: 1998 or 2004 belongs to the previous or next year, that year is used instead) Y A full numeric representation of a year, 4 digits Examples: 1999 or 2003 y A two digit representation of a year Examples: 99 or 03 a Lowercase Ante meridiem and Post meridiem am or pm A Uppercase Ante meridiem and Post meridiem AM or PM g 12-hour format of an hour without leading zeros 1 to 12 G 24-hour format of an hour without leading zeros 0 to 23 h 12-hour format of an hour with leading zeros 01 to 12 H 24-hour format of an hour with leading zeros 00 to 23 i Minutes, with leading zeros 00 to 59 s Seconds, with leading zeros 00 to 59 u Decimal fraction of a second Examples: (minimum 1 digit, arbitrary number of digits allowed) 001 (i.e. 0.001s) or 100 (i.e. 0.100s) or 999 (i.e. 0.999s) or 999876543210 (i.e. 0.999876543210s) O Difference to Greenwich time (GMT) in hours and minutes Example: +1030 P Difference to Greenwich time (GMT) with colon between hours and minutes Example: -08:00 T Timezone abbreviation of the machine running the code Examples: EST, MDT, PDT ... Z Timezone offset in seconds (negative if west of UTC, positive if east) -43200 to 50400 c ISO 8601 date Notes: Examples: 1) If unspecified, the month / day defaults to the current month / day, 1991 or the time defaults to midnight, while the timezone defaults to the 1992-10 or browser's timezone. If a time is specified, it must include both hours 1993-09-20 or and minutes. The "T" delimiter, seconds, milliseconds and timezone 1994-08-19T16:20+01:00 or are optional. 1995-07-18T17:21:28-02:00 or 2) The decimal fraction of a second, if specified, must contain at 1996-06-17T18:22:29.98765+03:00 or least 1 digit (there is no limit to the maximum number 1997-05-16T19:23:30,12345-0400 or of digits allowed), and may be delimited by either a '.' or a ',' 1998-04-15T20:24:31.2468Z or Refer to the examples on the right for the various levels of 1999-03-14T20:24:32Z or date-time granularity which are supported, or see 2000-02-13T21:25:33 http://www.w3.org/TR/NOTE-datetime for more info. 2001-01-12 22:26:34 U Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT) 1193432466 or -2138434463 MS Microsoft AJAX serialized dates