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Software · System & repair

CoreTime

CoreTime is a system monitoring program, available on Linux: reminders and due dates.

  • Completely free
  • Linux
  • Open source

Overview

CoreTime is a system monitoring program, available on Linux.

Features described in its Flathub listing: reminders and due dates.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “A time related task manager” — Flathub, 10 November 2026
  • “CoreTime is a very simple Clock/Calendar application which shows a clock, supports alarms, reminders, sports a stop watch and a timer.” — Flathub, 10 November 2026

At a glance

All of CoreTime is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

CoreTime is a very simple Clock/Calendar application which shows a clock, supports alarms, reminders, sports a stop watch and a timer.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 8 November 2026
  • Description from Flathub — AppStream (Flathub)

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