It should be
DateTimeFormatter f = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSXXX");
//or
DateTimeFormatter f = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSz");
instead of
DateTimeFormatter f = DateTimeFormatter.ofPattern("yyyy-MM-ddTHH:mm:ss.SSSZ");
From JAVADoc:
Answer from ninja.coder on Stack OverflowOffset X and x: This formats the offset based on the number of pattern letters. One letter outputs just the hour, such as '+01', unless the minute is non-zero in which case the minute is also output, such as '+0130'. Two letters outputs the hour and minute, without a colon, such as '+0130'. Three letters outputs the hour and minute, with a colon, such as '+01:30'. Four letters outputs the hour and minute and optional second, without a colon, such as '+013015'. Five letters outputs the hour and minute and optional second, with a colon, such as '+01:30:15'. Six or more letters throws IllegalArgumentException. Pattern letter 'X' (upper case) will output 'Z' when the offset to be output would be zero, whereas pattern letter 'x' (lower case) will output '+00', '+0000', or '+00:00'.
It should be
DateTimeFormatter f = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSXXX");
//or
DateTimeFormatter f = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSz");
instead of
DateTimeFormatter f = DateTimeFormatter.ofPattern("yyyy-MM-ddTHH:mm:ss.SSSZ");
From JAVADoc:
Offset X and x: This formats the offset based on the number of pattern letters. One letter outputs just the hour, such as '+01', unless the minute is non-zero in which case the minute is also output, such as '+0130'. Two letters outputs the hour and minute, without a colon, such as '+0130'. Three letters outputs the hour and minute, with a colon, such as '+01:30'. Four letters outputs the hour and minute and optional second, without a colon, such as '+013015'. Five letters outputs the hour and minute and optional second, with a colon, such as '+01:30:15'. Six or more letters throws IllegalArgumentException. Pattern letter 'X' (upper case) will output 'Z' when the offset to be output would be zero, whereas pattern letter 'x' (lower case) will output '+00', '+0000', or '+00:00'.
Both "yyyy-MM-dd'T'HH:mm:ss.SSSZZZZZ" and "yyyy-MM-dd'T'HH:mm:ss.SSSVV" would work. Note that 5 Zs work but no less
In order to achieve what you wish, you can utilize the static method "ofPattern" in the DateTimeFormatter class. This method returns a DateTimeFormatter object.
And as shown by tnas, you could use the following date and time format string:
"yyyy-MM-dd'T'HH:mm:ss.SSSXXX"
DateTimeFormatter test = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSXXX");
I tested the code and it compiles.
Late to the party, but you have to include some timezone information in your timestamp string. Otherwise it would be undefined from which timezone you'll want to substract your offset of five hours.
Assuming that you'll want to parse a timestamp which is 5 hours behind UTC, your string should read
2016-07-22T00:00:00.000Z-05:00
Note the 'Z' before the -05:00 part, which is short for "UTC"