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James Bucanek wrote:
An interval schedule (like every 3 days or every 90 minutes) is based on fixed time intervals from a particular point in time. You selected 28-Jul-2008 7:10 as your anchor time. QRecall then calculates 72 hour intervals from that time.
Unfortunately, 7:10 in July is an hour different from 7:10 in January because daylight savings time shifts the clock between summer and winter. QRecall is calculating an exact number of 72 hour intervals from 28-Jul-2008 7:10 and that occurs at 6:10 this month.
James Bucanek wrote:
I'd suggest using a Daily schedule and choose two days a week to perform the verify.
Charles Watts-Jones wrote:OK I understand this and even suspected it though it doesn't explain why two verifies (2 & 5 January) started at 6:55. Or does it?, it's too late here to do the maths.
By the way my own machine uses the same verify routine and has had no troubles (so far as I'm aware). Crazy world, eh?