Create a time string suitable for Common Log Format.
[dd/mmm/yyyy:HH:MM:SS ZZZZZ]
dd - Day of the month as a decimal number [01,31]
mmm - Abbreviated month name
yyyy - Year with century as a decimal number
HH - Hour (24-hour clock) as a decimal number [00,23]
MM - Minute as a decimal number [00,59]
SS - Second as a decimal number [00,61]
ZZZZZ - The time-zone as hour offset from GMT in (+/-)HHMM format