Note: 
     Since Smarty-2.6.10 numeric values passed to date_format are
     always (except for mysql timestamps, see
     below) interpreted as a unix timestamp.
    
     Before Smarty-2.6.10 numeric strings that where also parsable by
     strtotime() in php (like "YYYYMMDD") where sometimes - depending
     on the underlying implementation of strtotime() - interpreted as
     date strings and not as timestamps.
    
     The only exception are mysql timestamps: They are also numeric
     only and 14 characters long ("YYYYMMDDHHMMSS"). Mysql timestamps
     have precedence over unix timestamps.
    
- 
     %a - abbreviated weekday name according to the current locale
     
- 
     %A - full weekday name according to the current locale
     
- 
     %b - abbreviated month name according to the current locale
     
- 
     %B - full month name according to the current locale
     
- 
     %c - preferred date and time representation for the current locale
     
- 
     %C - century number (the year divided by 100 and truncated to an integer, range 00 to 99)
     
- 
     %d - day of the month as a decimal number (range 00 to 31)
     
- 
     %D - same as %m/%d/%y
     
- 
     %e - day of the month as a decimal number, a single digit is preceded by a space (range 1
     to 31)
     
- 
     %g - Week-based year within century [00,99]
     
- 
     %G - Week-based year, including the century [0000,9999]
     
- 
     %h - same as %b
     
- 
     %H - hour as a decimal number using a 24-hour clock (range 00 to 23)
     
- 
     %I - hour as a decimal number using a 12-hour clock (range 01 to 12)
     
- 
     %j - day of the year as a decimal number (range 001 to 366)
     
- 
     %k - Hour (24-hour clock) single digits are preceded by a blank. (range 0 to 23)
     
- 
     %l - hour as a decimal number using a 12-hour clock, single digits preceeded by a space
     (range 1 to 12)
     
- 
     %m - month as a decimal number (range 01 to 12)
     
- 
     %M - minute as a decimal number
     
- 
     %n - newline character
     
- 
     %p - either `am' or `pm' according to the given time value, or the corresponding strings
     for the
     current locale
     
- 
     %r - time in a.m. and p.m. notation
     
- 
     %R - time in 24 hour notation
     
- 
     %S - second as a decimal number
     
- 
     %t - tab character
     
- 
     %T - current time, equal to %H:%M:%S
     
- 
     %u - weekday as a decimal number [1,7], with 1 representing Monday
     
- 
     %U - week number of the current year as a decimal number, starting with the first Sunday
     as the first
     day of the first week
     
- 
     %V - The ISO 8601:1988 week number of the current year as a decimal number, range 01 to
     53, where week
     1 is the first week that has at least 4 days in the current
     year, and with Monday as the first day of the week.
     
- 
     %w - day of the week as a decimal, Sunday being 0
     
- 
     %W - week number of the current year as a decimal number, starting with the first Monday
     as the first
     day of the first week
     
- 
     %x - preferred date representation for the current locale without the time
     
- 
     %X - preferred time representation for the current locale without the date
     
- 
     %y - year as a decimal number without a century (range 00 to 99)
     
- 
     %Y - year as a decimal number including the century
     
- 
     %Z - time zone or name or abbreviation
     
- 
     %% - a literal `%' character