days are defined as going from one evening to the next. In Genesis, for example, each day of Creation is defined by "and it was evening, and it was morning"; while chapter 23 of the Gospel of Luke says: "And it was the preparation day (i.e. Friday), and the sabbath was coming...
) The act or practice of observing or noticing with attention; a heeding or keeping with care; performance; -- usually with a sense of strictness and fidelity; as, the observance of the Sabbath is general; the strict observance of duties. Observance (n.) An act, ceremony, or rite, as...