Zero Byte Time Slot Interchange, used in conjunction with defintions regarding DS1 coding schemes, e.g. AMI, B8ZS, ZBTSI.
Zulu Date
The Day at Greenwich England - See Zulu Time.
Zulu Date may be ahead of the day in other time zones, such as
the USA, or behind time zones such as Japan, etc.)
Zulu Time
Zulu is the military word for the letter "Z". Zulu is the
abbreviation for Longitude Zero - Greenwich (England) Mean Time
(GMT). Zulu Time is 6 hours later than Central Standard Time and
5 hours later than Central Daylight-Savings Time. Zulu Time
(GMT) is always the same worldwide. Communication network switches
are coordinated on Zulu Time.