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world clock and time tools

Recent window: last 5.4 months (2026-05-01 → 2026-10-11), compared with the prior 5.4 months.

horizontal · 15 members · Data as of 2026-10-14

This theme's recent-window count is below the current min-count filter, so it does not appear in the opportunity scorecard.

Pulled from real Hacker News comment threads on this niche's launches.

Most asked for

  • 24-hour version with all 86,400 possible times (1)
    Raised on The Alphabetical Clock
  • Android widget support in addition to PWA (1)
    Raised on Triclock
  • Curve triangle into cone with seconds as base for smooth circular motion (1)
    Raised on Triclock
  • German language version with different number sorting rules (1)
    Raised on The Alphabetical Clock
  • Improve visual separation of date and time without 'T' (1)
    Raised on UTC Time
  • Physical/IRL version of the clock (1)
    Raised on The Alphabetical Clock
  • Quick conversion to unix time from selected date/time (1)
    Raised on UTC Time
  • Roll 2D axes into circles with back half curving around for wraparound effect (1)
    Raised on Triclock

Concerns raised

  • Appears to be a one-shot vibe coded mess (1)
    Raised on UTC Time
  • Hard to read with 'T' between date/time (1)
    Raised on UTC Time
  • Hours spacing calculation slightly off from perfect equilateral triangle (1)
    Raised on Triclock
  • Mathematical impossibility of perfect triangles due to prime number ranges (23 vs 59) (1)
    Raised on Triclock
  • Only 12-hour version, not 24-hour (1)
    Raised on The Alphabetical Clock
  • Second hand jerks visually when resetting from 60 to 0 (1)
    Raised on The Alphabetical Clock
  • Too many format variants (1)
    Raised on UTC Time

Compared to

Members

Name Source Upvotes ▼ Launched
Triclock HN 68 2026-02-11
The Alphabetical Clock HN 40 2026-03-30
UTC Time HN 26 2026-08-13
Navio-Chron GITHUB 9 2026-09-11
A Triangular Clock HN 6 2026-02-10
Time Zone Pro: World Clock PH 4 2026-09-26
Open World Clock PH 4 2026-09-29
GMT Pilot Dual Time Tactical Watch Face PH 3 2026-09-24
Hands PH 2 2026-09-27
Internet Time PH 2 2026-10-03
Time Atlas World PH 1 2026-10-08
UTC Time Looker PH 1 2026-10-07
Timelive PH 1 2026-10-03
Clockar PH 1 2026-10-12
OxClock PH 1 2026-09-30