Week (wk)
Definition: Week na time unit wey equal 7 days.
History/origin: Seven-day week get ancient roots for Babylonian, Jewish, Roman, and later Christian traditions, and e later become global civil standard.
Current use: Weeks dey used for payroll cycles, planning, school timetables, project tracking, and recurring schedules.
Year (yr)
Definition: Year na long calendar unit based on Earth solar orbit. For unit conversion, dem dey commonly average am as 365.25 days.
History/origin: People organize years around seasons, planting cycles, and sky observations, then dem refine am through calendars for civic and scientific use.
Current use: yr dey used for ages, anniversaries, mortgages, warranties, leases, climate averages, school grades, investment horizons, history timelines, and long-term records.