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📱 eSIM Duration Calculator

Once your travel dates are set, you might wonder how many days of eSIM to purchase.
Simply enter your arrival and departure times to get the recommended duration!

🎯 Calculation Results

24-hour basis
days
Calendar days basis
days
UTC basis
days
🎯 Recommended: days
※ Displaying the safest duration

⚠️ Important: About "1 Day" Calculation Methods

eSIM providers use different "1 day" counting methods:

  • 24-hour basis: 24 hours from activation = 1 day
  • Calendar days: Local time 00:00-23:59 = 1 day
  • UTC basis: Day changes at UTC 00:00

📌 Please check each service's terms to understand their day counting method before purchase.

💡 Helpful Tips

  • 🔄 For connecting flights, calculate from your first arrival destination
  • ⏰ Consider time zone changes that might affect day calculations
  • 📞 Consider purchasing 1 extra day for emergency communication needs