Alternatives

Products that do what HowManyDays.app does

How many days between dates? Free date & time calculators.

1
Days Between Dates Calculator▲1
Calculate the exact number of days between any two dates
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2
Days Counter. Simple Event Tracker▲118
Helps to remember bdays which Facebook doesn't know
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3
Days Counter Event Tracker▲131
Don't forget a single important date
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4
Time and Date Calculator▲1
Calculate date differences, or add and subtract time
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How to mentally calculate the day of the week for any date▲80
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calcdaystime.com▲3
Dates, time, and math calculators — free, no signup
Aug 2026 · calcdaystime.com
7
Date Difference Calculator▲1
Find days, weeks, months, and years between any dates
Jul 2026 · freecalctools.net
8
Hours 2.0▲299
The time tracker you will actually use. Now on the web.
2016
9
TimeInZone▲153
Check times across multiple timezones instantly
2023
10
Business Days Calculator▲5
Free business days calculator - 166 countries, no signup
Jul 2026 · calculatebusinessdays.com
11
Free time calculator▲86
How much free time do you have remaining?
2018
12
Calendazed▲84
You can’t seize the day if you don’t know what day it is
2020
13
Time Zone Converter▲193
Calculate exact time anywhere in the world across time zones
2020
14
Working Days Calculator▲1
Weekdays · holidays · deadlines , computed instantly
13d ago · workingdayscalculator.net
15
Time Calc▲93
Calculator to perform elementary operations on units of time
2017
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MeetWhen▲73
Figure out meeting times across timezones without the hassle
2020
17
Klok▲192
A quick and handy time zone converter widget for iOS
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DaysLeft.to▲145
Counting how many days left to the next important date
2015
19
Age Difference Calculator▲4
Find the exact age gap between any two birth dates
Jul 2026 · agedifference-calculator.org
20
Meeting Calculator▲131
12 real-time calendar stats to take control of your time
2021
21
Days▲94
A beautiful countdown app to the events that matter to you.
2016
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DateCalx▲1
Free Date, Age & Business Days Calculator
Jul 2026 · datecalx.com
23
Business Day Calculator▲4
18 free deadline calculators, holidays in 25 countries
Jul 2026 · businessdaycalculator.org
24
Time and Duration Tools▲1
Sub-100ms clean, client-side time & date calculators
18d ago · timeandduration.com

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