dateTimeFormat

The datetime object (100AD-9999AD).
NOTE: This parameter is named datetime in Lucee.

The mask used to format the datetime output.
- d : Day of the month as digits; no leading zero for single-digit days.
- dd : Day of the month as digits; leading zero for single-digit days.
- EEE : Day of the week as a three-letter abbreviation.
- EEEE : Day of the week as its full name.
- m : Month as digits; no leading zero for single-digit months.
- mm : Month as digits; leading zero for single-digit months.
- mmm : Month as a three-letter abbreviation. (Dec)
- mmmm : Month as its full name.
- M : Month in year. (pre-CF2016u3)
- D : Day in year. (pre-CF2016u3)
- yy : Year as last two digits; leading zero for years less than 10.
- yyyy : Year represented by four digits.
- YYYY : Week year represented by four digits. (pre-CF2016u3)
- Y : Week year. (pre-CF2016u3)
- YY : Week Year as last two digits; leading zero for years less than 10. (pre-CF2016u3)
- G : Period/era string. (e.g. BC/AD)
- h : hours; no leading zero for single-digit hours. (12-hour clock)
- hh : hours; leading zero for single-digit hours. (12-hour clock)
- H : hours; no leading zero for single-digit hours. (24-hour clock)
- HH : hours; leading zero for single-digit hours. (24-hour clock)
- n : minutes; no leading zero for single-digit minutes.
- nn : minutes; leading zero for single-digit minutes.
- s : seconds; no leading zero for single-digit seconds.
- ss : seconds; leading zero for single-digit seconds.
- l or L : milliseconds, with no leading zeros.
- t : one-character time marker string, such as A or P.
- tt : multiple-character time marker string, such as AM or PM.
- w : Week of the year as digit. (JDK7+)
- ww : Week of the year as digits; leading zero for single-digit week. (JDK7+)
- W : Week of the month as digit. (JDK7+)
- WW : Week of the month as digits; leading zero for single-digit week. (JDK7+)

The following masks tell how to format the full date and time and cannot be combined with other masks:
- short : equivalent to "m/d/y h:nn tt"
- medium : equivalent to "mmm d, yyyy h:nn:ss tt"
- long : medium with full month name rather than abbreviation, followed by three-letter time zone; as in, "mmmm d, yyyy h:mm:ss tt EST"
- full : equivalent to "EEEE, mmmm d, yyyy h:mm:ss tt EST"
- iso CF 2016+ Lucee 5.3.8+ Formats the date time in ISO8601 format
- iso8601 Lucee 4.5+ Formats the date time in ISO8601 format

The function also follows Java date time mask, except for mask "a". For more information, refer to Date and Time Patterns topic in SimpleDateFormat Java API page.

JDK7 and JDK8 introduces the masks "w", "ww", "W", and "WW".

The timezone to use. Can be the 3 letter code ("EST","UTC") or the full name full {"America/New_York")