A clone of the classic Windows 3.x Clock application, extended and ported to 16‑bit (Windows 3.x) from Wine Clock. This is part of the osFree Win16 Personality project — an open‑source implementation of the 16‑bit Windows environment.
Clock displays the current date and time using both an analog and a digital representation. It is a component of the osFree Janus project to create an open‑source clone of Windows 3.0. The application is based on the Wine Clock code, adapted for the 16‑bit Windows API and extended with additional features.
The project continues the original idea by Marcel Baur (1998) and is currently maintained by the osFree team.
- Dual display mode – Switch between analog and digital views via the Settings menu or by double‑clicking the clock face.
- Customisable face – Show or hide the seconds hand, the date, and the window title bar.
- Always‑on‑top – Keep the clock visible above other windows.
- Remembered settings – Window position, size, and display options are saved between sessions.
- Lightweight – Minimal resource usage, just like the original Windows 3.x clock.
- Localisation ready – Resource file (
clock.rc) can be translated; the current version includes English strings. - Debug support – When a debug version of the system is present, extra diagnostic information is shown.
| File | Description |
|---|---|
main.c |
Main application source code |
main.h |
Header file with common definitions |
winclock.c |
Core clock implementation (drawing, time handling) |
winclock.h |
Header file for clock‑specific functions |
clock.rc |
Resource file (menus, dialogs, strings) |
clock_res.h |
Resource identifiers |
colors.h |
Colour definitions |
makefile |
Build file for Open Watcom Make |
_wcc.cmd / _wcc.sh |
Auxiliary build scripts |
clock.docx |
Documentation file |
We welcome your contributions! Please keep the following in mind:
- Bug reports – Create issues in the Issues section.
- Pull requests – Send your improvements and fixes.
- Documentation and localisation – Help translating the interface into other languages is highly valuable.
Distributed under the GNU Lesser General Public License v2.1 (LGPL‑2.1). See LICENSE for more details.
- osFree Win16 Personality (WIN16) – the main project to create an open‑source clone of Windows 3.x
- osFree Project – the parent project for an open‑source OS/2 clone
- WinVer – a clone of the Windows “About” dialog
- Notepad – a clone of Notepad
- Taskman – a clone of Task Manager
-
Copyright (C) 1998 Marcel Baur
Clock is partially based on:
- Program Manager by Ulrich Schmied
- rolex.c by Jim Peterson
-
Copyright (C) 2002 Sylvain Petreolle
-
Copyright (C) osFree project
Last updated: May 25, 2026