What does tt mean in General?

This page is about the meanings of the acronym/abbreviation/shorthand tt in the Business field in general and in the General terminology in particular.

toilet tissue

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What does tt mean?

terrestrial time, TT, terrestrial dynamical time, TDT, ephemeris time(noun)
(astronomy) a measure of time defined by Earth's orbital motion; terrestrial time is mean solar time corrected for the irregularities of the Earth's motions

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"tt." Abbreviations.com. STANDS4 LLC, 2017. Web. 23 Oct. 2017. <http://www.abbreviations.com/term/1431991>.