BHC - Business Hours Calculator Version 1.1.1

Purpose

BHC calculates elapsed business/production time between a start date/time and an end date/time. It excludes weekends and U.S. Federal Observed Holidays for the selected holiday year.

Current layout

• Dark themed single-window interface
• Auto-sized startup window so all panels and result tiles are visible
• Settings panel:
  • Federal Observed Holidays
  • Production Hours
• Calculator panel:
  • Start Date / Time
  • End Date / Time
  • Calculate and Clear buttons
  • Result tiles for Days, Hours, and Minutes also includes unfiltered total duration

Time entry (User MUST enter time in 24 hours format)

Use 24-hour HHMM format. Examples:

• 0600 = 06:00 AM
• 2200 = 10:00 PM
• 2300 = 11:00 PM

Auto-correction:

• 700 will automatically become 0700
• Invalid times are not auto-corrected; they are rejected during calculation
• Colons are also accepted and converted, for example 7:00 becomes 0700

Build instructions

1. Install Python 3 on Windows.
2. Extract this ZIP file.
3. Double-click build.exe.bat.
4. The executable should be created here: dist\BHC.exe

Files included

• bhc.py
• bhc_calendar.ico
• build.exe.bat
• README.txt