How to use

• Click any hour block to set that as the reference time across all zones
• Use the arrow buttons to shift by one hour, or pick a specific date
• Green blocks = working hours (9 AM - 5 PM), dark blocks = nighttime
• Hover over a column to see the same moment highlighted across all timezones
• Toggle between 12-hour and 24-hour format with the 12H/24H button