Hi, I'm John Dalziel. I’m a Scottish software engineer, writer and speaker.

This publication evolved from a personal blog launched in January 2000. I've been exploring the many facets of time, timekeeping and related subjects here for over 20 years.

The Computus Engine is hosted on the Ghost publishing platform. It uses a modified version of the Genki theme by Fueko.

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com·​pu·​tus noun
Latin for computation, the "computus" is the method for calculating the date of Easter. A medieval set of tables for calculating astronomical events and movable dates in the calendar.