Convert Time from Hour to Week (h to week)
Multiple conversions

Hour to Week Conversion Formula

To convert from Hour (h) to Week (week), use the following formula:

Example

Let's convert 5 Hour (h) to Week (week).

Using the formula:

Therefore, 5 Hour (h) is equal to $0.029761904761904761905$ Week (week).

What is an Hour (h)?

An hour (h) is a universal unit of time equal to 60 minutes, or 3,600 seconds.

Why Is a Day Divided into 24 Hours?

The practice of breaking the day into smaller parts goes back to ancient civilizations, especially the Egyptians. They divided daylight and nighttime into 12 hours each, creating the 24-hour day.

During the day, they used shadow clocks—an early form of sundial—to tell the hours, and at night, they tracked groups of stars called decans to mark the hours.

This system, known as a duodecimal (base-12) system, was convenient as the number 12 has many factors, making it easy to subdivide.

Why Does an Hour Have 60 Minutes?

The reason we divide an hour into 60 minutes and a minute into 60 seconds comes from the ancient Babylonians. They used a sexagesimal (base-60) numbering system for their mathematical and astronomical calculations.

This system was likely adopted because 60 is a highly composite number, having twelve factors (1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60). This made it exceptionally easy to calculate fractions.

The Greek astronomers Hipparchus and Ptolemy later adopted this system for their astronomical work, solidifying its use in measuring time and angles (like the 360 degrees in a circle).

How Do We Define an Hour Today?

While an hour is commonly defined as 3,600 seconds, its ultimate precision is tied to the modern definition of a second.

According to the International System of Units (SI), a second is the duration of 9,192,631,770 cycles of the radiation emitted during the transition between two energy levels of the caesium-133 atom.

Therefore, a modern hour equals exactly 3,600 seconds — 3,600 times this atomic standard — making it an exceptionally stable, universally consistent unit of time verified by atomic clocks around the world.

What is a Week (week)?

A week is a familiar unit of time, consisting of seven days.

While we commonly think of it as just seven calendar days, it can also be measured as 168 hours, 10,080 minutes, or 604,800 seconds.

The concept of a seven-day week is one of the oldest and most consistent timekeeping methods in human history.

Why Are There 7 Days in a Week?

Have you ever wondered why a week has exactly seven days?

The tradition dates back thousands of years to the ancient Babylonians. They were skilled astronomers who observed seven celestial bodies moving through the night sky: The Sun, the Moon, Mars, Mercury, Jupiter, Venus, and Saturn.

Believing the number seven held special significance, they structured their calendar in seven-day cycles to honor these celestial bodies.

This system was so practical that it was adopted by neighboring cultures, including the Greeks and Romans, and eventually spread worldwide, becoming the global standard we use today.

Which Day Starts the Week: Sunday or Monday?

While a week is always seven days long, the day it officially begins depends on the time zone in which you are located.

• Sunday marks the beginning of the week in many nations, such as the United States, Canada, and Japan, due to long-standing religious and cultural traditions.
• The international standard ISO 8601, which designates Monday as the start of the week, is widely used in business and government—especially in Europe—to ensure consistency in global communication.

What is the International System of Units (SI)?

Hour to Week Conversion Table

Here are some quick reference conversions from Hour (h) to Week (week):