Does anyone know of a league that uses a fixed darkness rule, such as (a) tested by a light meter or some other instrument, or (b) by timing with respect to official sundown?
If there's some precedent, I'd like to show that to our league bosses. Our rule is the usual rule that puts it entirely within the discretion of the umpire, but we once had a nasty argument between a coach and an ump about whether it was too dark to play, and that was not a good example for very young ballplayers.
Thanks.
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