Life & fun · alternatives · 2026
24 alternatives to Durat.io
Durat.io is a calculator designed to parse and compute time expressions, outputting results in ISO 8601 format. It accepts various time and date inputs, including AM/PM designations, and performs calculations on… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Durat.io launched in 2015; newer entries below may have overtaken it.
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Timezone converter and world clock by time.fyi is a simple, fast and easy to use app to convert timezones and check the current time in different cities around the world.
2024 · time.fyi · its alternatives →
- 2
Destato▲70A minimalistic clock extension for chrome with Behance stats
2018 · chromewebstore.google.com · its alternatives →
- 3
I launched NumPad v1 on here a few years ago, and back then it wasn't much more than a thin CodeMirror wrapper around the calculator engine I'd written. Now I've rewritten it as a PWA that supports multiple documents, persists them to IndexedDB, and has a syncing service for paying customers. Syncing is handled by Automerge[1] under the hood, which should make it relatively easy to get document sharing working too. [1] https://automerge.org/
2022 · numpad.io · its alternatives →
- 4CA
2021 · mkhan45.github.io · its alternatives →
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CalPal▲105I built this using React/Next.js. The parsing logic uses [library/custom regex]. Added Gemini API support so users can generate budget templates dynamically. No ads, just a tool.
Jan 2026 · trycalpal.app · its alternatives →
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Time Calc▲93Calculator to perform elementary operations on units of time
2017 · 8mobile.org · its alternatives →
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2014 · hack.close.io · its alternatives →
- 11
66uptime▲98Self-hosted & easy to use uptime monitoring software.
2022 · 66uptime.com · its alternatives →
- 12
Time zone converter, meeting scheduler + video conferencing
2017 · apps.apple.com · its alternatives →
- 13
The core question: how did HP's scientific calculators actually work at the gate level? That rabbit hole led to building one from scratch. The architectural decision everything else follows from: a decimal calculator should store numbers as BCD — one decimal digit per 4-bit nibble. A standard byte-oriented CPU (Z80, 6502) fights that layout constantly. So I designed a small custom CPU in Verilog where 4 bits is the natural data width and memory is nibble addressable. What the project covers: - Custom CPU: Harvard architecture, 12-bit ISA, 8-state execution FSM, hardware stack guard with a…
May 2026 · github.com · its alternatives →
- 14
Calculate the duration of a script, instantly.
2019 · script2time.com · its alternatives →
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Epoch▲95A general purpose library for building real-time charts.
2014 · fastly.github.io · its alternatives →
- 16
FlouState▲99I built FlouState because "4 hours of coding" tells you nothing. Was it 4 hours debugging or 4 hours building features? Very different. It's a VS Code extension that automatically categorizes your coding into: Creating (new features), Debugging (fixing issues), Refactoring (improving code), or Exploring (learning codebase). Example: Yesterday I "coded" 6 hours but it was actually 3.5h debugging a race condition, 1.5h refactoring, 0.5h tests, 0.5h exploring. Traditional time trackers just show "6 hours in TypeScript." Technical: Tracks file changes, debug sessions, and edit patterns locally.…
2025 · floustate.com · its alternatives →
- 17
A simple minimalistic digital clock extension for Chrome
2020 · chromewebstore.google.com · its alternatives →
- 18
Wrote this to learn more about the `chumsky` parser combinator library, rustyline, and the `ariadne` error reporting crate. Such a nice DX combo for writing new languages. Still a work in progress, but I thought I'd share :)
2025 · github.com · its alternatives →
- 19ER
2016 · klopets.com · its alternatives →
- 20AU
I find myself having to convert a lot of unix timestamps to a human readable format, but most of the online calculators I found don't include the micro or nanoseconds in the human readable output. It's a small detail, but I find myself having to manually space out the timestamp frequently. I'm learning frontend development, so I made this converter to hopefully make it easier to convert timestamps. Welcome to any feedback :)
2023 · justquickmath.com · its alternatives →
- 21RT
2015 · ramadan-time.github.io · its alternatives →
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Live UTC clock with one-click copy for ISO 8601, RFC 3339, RFC 2822 and Unix time, a device clock-skew check, and get-the-time-now code for 14 languages. Dark, fast, no signup.
Aug 2026 · utctime.app · its alternatives →
- 24
I recently build a python time-parser that can parse most formats in a single line. Might be useful to some here. (Also happy to hear feedback and feature requests)
2025 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →