system of reckoning

Or, to be more precise, his briss, which the inventor of the Anno Domini system of reckoning, a Scythian monk named Dennis the Diminutive, calculated--surely errantly--to have taken place on Jan. 1, A.D.

From Time Magazine Archive

We have sixty divisions on the dials of our watches simply because the Greek astronomer Hipparchus, who lived in the second century B. C., accepted the Babylonian system of reckoning time, that system being sexagesimal.

From Chips From A German Workshop, Vol. V. Miscellaneous Later Essays by F. Max (Friedrich Max) Müller

To establish a sound and rational system of reckoning time which may eventually be adopted for civil purposes everywhere, and thus secure uniformity and accuracy throughout the globe.

From International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day. October, 1884. Protocols of the Proceedings by Various

What change in the system of reckoning has been effected?

From The Government Class Book Designed for the Instruction of Youth in the Principles of Constitutional Government and the Rights and Duties of Citizens. by Andrew W. Young

But the Lord has His own system of reckoning compound interest, and His ways of paying are not our ways.

From Saxe Holm's Stories by Helen Hunt Jackson