ALMANAC. A table or calendar, in which are set down the revolutions of the seasons, the rising and setting of the sun, the phases of the moon, the most remarkable conjunctions, positions and phenomena of the heavenly bodies, the months of the year, the days of the month and week, and a variety of other matter.
2. The courts will take judicial notice of the almanac; for example, whether a certain day of the month was on a Sunday or not. Vin. Ab. h. t.; 6 Mod. 41; Cro. Eliz. 227, pl. 12; 12 Vin. Ab. Evidence (A, b, 4.) In dating instrments, some sects, the Quakers, for example, instead of writing January, February, March, &c., use the terms, First month, Second month, Third month, &c., and these are equally valid in such writings. Vide 1 Smith's Laws of Pennsylvania, 217.