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Swatch Internet Time

Convert current time or any time to Swatch .beat (1 beat = 86.4s), format @000 to @999 with no time zone.

Agora (BMT — Biel Mean Time, UTC+1):
@000

Swatch .beat: the day divided into a thousand

In 1998 Swatch launched a measure of time with no zones: the day divided into a thousand beats, written with an at sign, from at 000 to at 999. The promise was arranging times online without conversion — if everyone used beats, at 500 would be at 500 the world over. ICQ showed the beat next to the clock, and a few online games used it to schedule events across regions.

A beat lasts 86.4 seconds, which is the day divided by a thousand. The reference is Biel Mean Time, fixed at UTC plus one hour, where at 000 is midnight in Biel, the Swiss town where Swatch is based. Since BMT has no daylight saving, it matches Swiss local time in winter and runs an hour behind it in summer — a detail nobody notices until they try to arrange a meeting in Switzerland using beats.

The idea never caught on, for a reason that says more about time zones than about Swatch: the real problem in scheduling across continents is not converting a number, it is knowing what time it is for the other person. A global unit removes the conversion and the useful information with it — at 500 does not tell you it is the middle of the night at the other end. The unit survives in niches, and the page converts both ways.

Frequently asked questions

Why 86.4 seconds?
Straight arithmetic: the day's 86400 seconds divided by a thousand. The same number appears in French decimal time from 1793, where the decimal minute has exactly the same length — the two attempts at decimalising the day arrived, by different routes, at the same unit of a little over a minute.
Is there a subdivision of the beat?
Swatch did mention centibeats of 0.864 seconds, but that never left the marketing copy. What gets used in practice is the beat with decimal places, which is what the page shows, and that is the form found in the few implementations still around.
Does anyone still use it?
Very few people, and mostly out of nostalgia. A handful of libraries and watches still display the beat as a curiosity, and Swatch kept models with the dial for some years. As a historical record it stays interesting: it was the last serious commercial attempt to abolish time zones.

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