It's About Time C

[John Richardsim]

I'm not sure if I should be answering this since I'm in Div B but... (Click to Show Hidden Text)

the number of wavelengths of a certain color of light emitted by a certain atom in the ground state (I think it's cesium)

Close enough, your turn.

[Unome]

Um...

What is the atomic mass of the atom in the above answer?

[zerasaw]

It's cesium-131

[Unome]

Correct, your turn zerasaw.

[John Richardsim]

Alright, once again, I think it's about time we get this marathon rolling again.

In what year was daylight saving time first established in the US?

[plaid suit guy2]

Elementary (Click to Show Hidden Text)

1918

Question (Click to Show Hidden Text)

When was the second time Daylight Savings was observed in the United States?

[UTF-8 U+6211 U+662F]

Maybe... (Click to Show Hidden Text)

1942?

[UTF-8 U+6211 U+662F]

I guess I'll start this up again:
What do GMT, UTC, TAI, BCE, and CE stand for?

[finagle29]

I think it's about time someone answered your question

I think the differences between the acronyms and the initialisms formed by the English words are caused by the French ordering of adjectives and nouns??? (Click to Show Hidden Text)

Greenwich Mean Time, Universal Coordinated Time, Atomic International Time, Before Common Era, Common Era

[zerasaw]

TAI standing for "temps atomic internationale"