This feature allows you to view the same date & time in multiple time zones simultaneously. Useful for scheduling across countries or teams.
1. Select a time from the input field.
2. Choose a time zone from the dropdown list.
3. Click Add Zone to add it to the list below.
The selected time zones will appear under Date & Time Details. You can add multiple zones, and they will all be displayed together for comparison.
Thursday, August 21, 2025
Selected Time: 22:18
🌍 Selected Time Zones
Asia/Kuala_Lumpur: 10:19:47 PM [Remove]
Asia/Makassar: 10:19:47 PM [Remove]
Asia/Ulan_Bator: 10:19:47 PM [Remove]
Each time zone you add appears in the Selected Time Zones list with its local time. If you no longer need a zone, click the Remove button beside it to delete it from the list.
You can freely add or remove time zones without affecting the base date and time. This makes it easy to compare only the zones you care about.
1. Select a Start Date & Time.
2. Select an End Date & Time.
3. Click Calculate Difference to see the breakdown.
4. Use the copy button to copy results.
Start: 01/01/2025 10:00:00
End: 22/01/2025 10:02:00
Result:
• 0 years, 0 months, 21 days, 0 hours, 2 minutes, 0 seconds
• 21 days, 0 hours, 2 minutes, 0 seconds
• 504 hours, 30242 minutes, 1814520 seconds total
- You can compare any two dates & times, past or future.
- The breakdown shows years, months, days as well as pure totals in
days, hours, minutes, and seconds.
- Great for calculating age, project durations, countdowns, or time gaps.
1. Select a base date and time.
2. Enter how many years, months, days, hours, minutes, or seconds you want to add.
3. Click Calculate to see the new date & time.
4. You can then copy the result with the button.
Base Date: 12/10/2025 10:30:00
+ 1 year, 2 months, 3 days
= 15/12/2026 10:30:00
You can add just one unit (like 30 minutes) or combine multiple units (e.g., 2 days and 3 hours). The calculator will handle rollovers (e.g., adding 90 minutes = +1 hour 30 minutes).