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HowManyDays.app
How many days between dates? Free date & time calculators.
HowManyDays.app is a free collection of date and time calculators that run entirely in your browser — no sign-ups, no tracking, no ads. Calculate the exact days between any two dates, your age in days and weeks, workdays excluding weekends, time zone differences, moon phases, Chinese zodiac signs, countdowns and more. 13 tools and counting, each one instant, mobile-friendly and completely free.
👋 Hi hunters! I built HowManyDays.app because date math should be instant and private.
Every calculator runs in your browser — no sign-ups, no tracking, no ads. Just pick a tool and get the answer: days between dates, exact age, workdays, time zone differences, moon phases, countdowns and more.
The most-used tool so far? Days Between Dates — people use it for planning, deadlines and even legal paperwork.
What date calculator do you wish existed? Happy to add it! 🚀
About HowManyDays.app on Product Hunt
“How many days between dates? Free date & time calculators.”
HowManyDays.app was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #159 on the daily leaderboard. HowManyDays.app is a free collection of date and time calculators that run entirely in your browser — no sign-ups, no tracking, no ads. Calculate the exact days between any two dates, your age in days and weeks, workdays excluding weekends, time zone differences, moon phases, Chinese zodiac signs, countdowns and more. 13 tools and counting, each one instant, mobile-friendly and completely free.
On the analytics side, HowManyDays.app competes within Web App, Productivity and Tech — topics that collectively have 1.4M followers on Product Hunt. The dashboard above tracks how HowManyDays.app performed against the three products that launched closest to it on the same day.
Who hunted HowManyDays.app?
HowManyDays.app was hunted by Aren Breur. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of HowManyDays.app including community comment highlights and product details, visit the product overview.
Aren Breur