Eastern Standard Time.
1) Eastern Standard Time 2) Expressed sequence tag.
No, "tt" is not commonly used as an abbreviation for "estimated." The abbreviation for "estimated" is typically "est." or "est." depending on the context. "TT" could stand for various other terms, such as "table tennis" or "teletype," but it does not relate to "estimated."
Wriiten as in the question, 'est. ' means estimate or estimated. This abbreviation is often used when referring to a country's population.The country of Estonia could be abbreviated as 'Est.', but this would seem very unlikely.
est.
Est.
Est.
est.
The Latin for 'that is' is 'id est.' The abbreviation for that is: i.e.
The abbreviation is 'Est.' .
The Latin for 'that is' is 'id est.' The abbreviation for that is: i.e.
Est.
The abbreviation "est." has been used many times. E.g. "Burt's Plumbing Est. 1976" would have been established in 1976