Convert time units — seconds, minutes, hours, days, weeks, months, years.
| Unit | Name | Value |
|---|---|---|
| ms | Millisecond | 604800000 |
| s | Second | 604800 |
| min | Minute | 10080 |
| hr | Hour | 168 |
| d | Day | 7 |
| mo | Month (30d) | 0.23333333 |
| yr | Year | 0.019178082 |
Formula: Hour = Week × 168
Multiply any week value by 168 to get hour.
Reverse: Week = Hour × 0.005952
Common week values — factor: 1 wk = 168 hr
| Week (wk) | Hour (hr) | Context |
|---|---|---|
| 1 wk | 168 hr | One week |
| 2 wk | 336 hr | Two weeks |
| 4 wk | 672 hr | One month |
| 8 wk | 1,344 hr | Two months |
| 13 wk | 2,184 hr | One quarter |
| 26 wk | 4,368 hr | Half year |
| 52 wk | 8,736 hr | One year |
| 104 wk | 1.747e+04 hr | Two years |
| 260 wk | 4.368e+04 hr | 5 years |
| 520 wk | 8.736e+04 hr | One decade |
| 1,040 wk | 1.747e+05 hr | 20 years |
| 2,600 wk | 4.368e+05 hr | 50 years |
| 5,200 wk | 8.736e+05 hr | One century |
| 1.04e+04 wk | 1,747,000 hr | 200 years |
| 5.2e+04 wk | 8,736,000 hr | One millennium |
1 wk = 168 hr. Memorize for instant estimates.
Use 168 as a quick mental multiplier.
Multiply result by 0.005952 to verify the original wk value.
Plans two-week sprint cycles and tracks velocity in story points per week.
Structures the academic year into teaching weeks and holiday blocks.
Prescribes treatment durations and follow-up schedules in weeks.
Designs weekly workout plans and measures fitness progress week by week.
Works to weekly publication deadlines and measures subscription periods in weeks.
Tracks notice periods, probation periods, and holiday entitlements in weeks.
The 7-day week has no astronomical basis — unlike the day, month, or year. Its origin is traced to Babylonian astronomy (assigning planets to days) and Jewish tradition (the biblical 7-day creation), later adopted by Rome and spread globally.
The week is the standard unit for work schedules, academic timetables, and business cycles across virtually every culture. The ISO 8601 standard defines Monday as the first day of the week.
Interesting fact: The French Revolutionary Calendar (1793–1805) attempted a 10-day week (décade). It was deeply unpopular and abandoned within 12 years.
The hour (3,600 seconds, 60 minutes) has roots in ancient Egyptian astronomy, which divided the day and night into 12 equal parts each. The 24-hour day became standard in ancient Greece and Rome.
Hours define work schedules, travel times, broadcast programming, and billing rates worldwide. UTC (Coordinated Universal Time) is the global reference, and all time zones are defined as offsets of whole or half hours from UTC.
Interesting fact: Earth's rotation is gradually slowing — a day was about 22 hours long 620 million years ago. This is why leap seconds are occasionally needed.
Converting week to hour is a common task across science, engineering, and everyday planning. The time scale spans from nanoseconds in computing to centuries in history, and having accurate conversions helps when comparing measurements across different systems or disciplines.
As a quick reference: 5 wk = 840 hr and 10 wk = 1680 hr. For the reverse: 1 hr = 0.005952 wk. The exact conversion factor is 1 wk = 168 hr.
All conversions are performed in IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.