And not just that it's, say, five minutes past 6:00. Or that the cake will be done in ten minutes.
Our oven, original to our 1961 house, was a best-in-class cooking/baking/roasting tool of its day. Certainly, that's true if you believe the the owner's manual... which we have. (We, meaning my husband and I, were but a newborn babe and just a twinkle in daddy's eye at the time our house was built... but we bought our house 7 years ago from the original owner, who meticulously kept all original paperwork and every record of updates to our house. We received the paperwork along with the house.)