World calendars: nine ways to count the same day

Today has a different date in Makkah, Jerusalem, Tehran and Beijing, and every one of them is correct. They simply chose different things to be faithful to.

All the calendars tools

The full set runs on the home page, where they share one live clock and stay in step with each other.

Reading on calendars

• February Calendar: Key Insights from a Short Month
• August Calendar: Ditch the Static View, Plan Dynamically
• September Calendar: Analyzing Past Dates for Future Planning
• March Calendar: Key Dates for Smarter Planning
• October Calendar: Reflecting on Key Dates and Planning Lessons
• Virginia’s Time Zone: Navigating Eastern Time &
• Baltimore’s Clock: Understanding Eastern Time & DST
• Detroit Time Difference: Navigating Eastern Time
• Somalia Time Explained: Navigating Eastern Africa’s Consistent Clock
• Why the Islamic Calendar Shifts 11 Days Each Year
• 10 Weeks From Today: Beyond Just Marking Your Calendar
• Chinese Zodiac Years: Why Is the Year of the Fire Horse