simultaneity

And, as far as the laws of simultaneity would allow, it was midnight in Greenwich, England.

Someday we'll reach true simultaneity—enter warp, and come out just where we want to be, at the same time.

Phenomena in nature stand to each other in two relations, that of simultaneity, and that of succession.

We have not a direct intuition of simultaneity, nor of the equality of two durations.

The qualitative problem of simultaneity is made to depend upon the quantitative problem of the measurement of time.