What is the formula to convert hours to minutes?

Minutes = Hours × 60. To convert minutes to hours: Hours = Minutes ÷ 60. For mixed hours and minutes: total minutes = (hours × 60) + minutes. For example: 3 hours 45 minutes = (3 × 60) + 45 = 225 minutes.

How many minutes are in a day?

1 day = 24 hours × 60 minutes = 1,440 minutes. In seconds: 1,440 × 60 = 86,400 seconds per day.

How many weeks are in a year?

A common year has 52 weeks and 1 day (365 days ÷ 7 = 52.14 weeks). A leap year has 52 weeks and 2 days (366 days ÷ 7 = 52.29 weeks). So a year is never exactly 52 weeks.

Is 1 month equal to 4 weeks?

No. 4 weeks = 28 days, but months have 28, 29, 30, or 31 days. Only February in a common year (28 days) equals exactly 4 weeks. All other months are longer than 4 weeks. On average, a month is about 4.35 weeks (365.25 ÷ 12 ÷ 7).

How many minutes are in a year?

A common year has 525,600 minutes (365 × 24 × 60). A leap year has 527,040 minutes (366 × 24 × 60). This is the number famously referenced in the song "Seasons of Love" from the musical Rent.

How do you calculate the number of days between two dates?

Subtract the earlier date from the later date. In practice: count the days in each partial month, add the full months in between, and account for leap years. Most date calculators do this automatically. The formula is: Days = (End date − Start date) in milliseconds ÷ 86,400,000.

How many hours are in a week?

1 week = 7 days × 24 hours = 168 hours. In minutes: 168 × 60 = 10,080 minutes. In seconds: 10,080 × 60 = 604,800 seconds.

What is 1.5 hours in minutes?

1.5 hours = 1.5 × 60 = 90 minutes. More generally, to convert decimal hours to minutes, multiply by 60. For example: 2.25 hours = 2.25 × 60 = 135 minutes.

Interactive calculators + reference tables

Date & Time Calculations

Q: Is 4 weeks equal to 30 days?

No. 4 weeks = 28 days (4 × 7 = 28). 30 days is 2 days more than 4 weeks. Most months have 30 or 31 days, which is why "1 month" and "4 weeks" are often confused — but they are not the same. Only February in a common year (28 days) equals exactly 4 weeks.

Q: How do you find the halfway point between two dates?

Add the timestamps of both dates together and divide by 2. In practical terms: count the total days between the two dates, divide by 2, and add that many days to the start date. For example, halfway between January 1 and January 31 is January 16 (15 days from each end).

Is 4 weeks equal to 30 days? What's the hours-to-minutes formula? How do you find the halfway point between two dates? — All answered with interactive tools and clear explanations.

4 weeks = ?28 days

1 hour = ?60 minutes

1 day = ?1,440 minutes

1 week = ?168 hours

1 year = ?525,600 minutes

Quick Answers

Is 4 weeks = 30 days?

No. 4 weeks = 28 days.

30 days = 4 weeks + 2 days

Hours → Minutes?

Multiply by 60.

3.5 hours = 210 minutes

Halfway between dates?

Add timestamps, divide by 2.

Or: start + (total days ÷ 2)

Interactive Calculators

Use the tools below to calculate instantly — no page reload needed.

Is 4 Weeks Equal to 30 Days?

Weeks vs days — the exact relationship

No — 4 weeks is NOT equal to 30 days.

4 weeks = 28 days (4 × 7 = 28). 30 days is 2 days more than 4 weeks. Most months have 30 or 31 days, which is why "1 month" and "4 weeks" are often confused — but they are not the same.

Weeks

= 28 days

Days

= 4.2857 weeks

4 weeks (28 days) is 2 days LESS than 30 days

Key Facts

1 week = exactly 7 days. Always.
4 weeks = 28 days. Not 30.
1 month ≠ 4 weeks. Months have 28, 29, 30, or 31 days.
February is the only month that can equal exactly 4 weeks (28 days in a common year).
30 days = 4 weeks and 2 days.
31 days = 4 weeks and 3 days.
1 year = 52 weeks and 1 day (or 2 days in a leap year).

Weeks to Days Reference

Weeks	Days	Months (approx)	Note
1	7	~0.23
2	14	~0.46
3	21	~0.69
4	28	~0.92	≠ 1 month (2 days short)
5	35	~1.15
8	56	~1.84
13	91	~3	≈ 1 quarter
26	182	~6	≈ half year
52	364	~12	≈ 1 year (1 day short)

Hours to Minutes Formula

Convert between hours, minutes, seconds, and days

Hours

Minutes

The Formula

Minutes=Hours × 60

Hours=Minutes ÷ 60

Seconds=Minutes × 60

Quick Reference

Hours	Minutes	Seconds	Days
0.5	30	1,800	1/48
1	60	3,600	1/24
1.5	90	5,400	1/16
2	120	7,200	1/12
3	180	10,800	1/8
4	240	14,400	1/6
6	360	21,600	1/4
8	480	28,800	1/3
12	720	43,200	1/2
24	1,440	86,400	1
48	2,880	172,800	2
168	10,080	604,800	7 (1 week)

Halfway Between Two Dates

Find the exact midpoint between any two dates

Start Date

End Date

Halfway Point (50%)

Wednesday, April 22, 2026

2026-04-22

2026-04-072026-05-07

2026-04-22 (midpoint)

Total Days

Total Weeks

4.3

Days to Midpoint

Days from Midpoint

All Milestone Points

0%Start

2026-04-07

25%25% point

2026-04-14

50%Halfway (50%)

2026-04-22

75%75% point

2026-04-29

100%End

2026-05-07

How the Halfway Date is Calculated

The midpoint date is found by adding the timestamps of both dates together and dividing by 2. In plain terms: count the total days between the two dates, divide by 2, and add that many days to the start date. If the total is odd, the midpoint falls at noon on the middle day.

Midpoint = Start + (End − Start) ÷ 2

Time Unit Cheat Sheet

Every common time unit conversion in one place.

Unit	Seconds	Minutes	Hours	Days
1 minute	60	1	0.0167	0.000694
1 hour	3,600	60	1	0.0417
1 day	86,400	1,440	24	1
1 week	604,800	10,080	168	7
4 weeks	2,419,200	40,320	672	28
30 days	2,592,000	43,200	720	30
1 month (avg)	2,629,746	43,829	730.5	30.44
1 year (365d)	31,536,000	525,600	8,760	365
1 year (366d)	31,622,400	527,040	8,784	366