Many travelers to Malaysia are uncertain about the correct timing to submit their MDAC. Submit too early and the system rejects your application; submit too late and you risk processing delays or denial at immigration. This guide clarifies the exact timing window to ensure a smooth entry.

1. 🔍 The Official 72‑Hour Window

As of January 1, 2024, Malaysian immigration requires that travelers complete and submit the MDAC within 72 hours (3 days) prior to their scheduled arrival date in Malaysia—including the day of travel itself.

For example:

  • Flight arriving on June 10 → MDAC can be submitted from June 8 onwards.

  • If arriving early on June 10, ensure you submit on June 8 or 9 based on Malaysia Time (GMT+8).

2. ⏰ Why Timing Matters

Submitting MDAC earlier than 3 days triggers errors like “Application submitted too early.” Conversely, submitting after arrival day or at the airport is no longer accepted, as the grace period has ended.

3. 🌐 Time Zone Tip: Use Malaysia Time

If you’re in a different time zone, calculate your window in Malaysia Standard Time (GMT+8)—not your local time. This avoids automatic rejection due to timezone mismatch.

4. ✅ Best Practice Recommendation

For reliability:

  • Wait until Day 2 of the MDAC window.

  • Submit as early as feasible that morning (Malaysia time).

  • Avoid leaving it until the evening or departure day.

5. 📋 Example Scenarios

  • Arriving June 10 at 23:50 → submit no earlier than June 8 23:50 MY time.

  • Arriving June 10 at 02:00 → submit starting June 8 02:00 MY time.

6. 🚨 What If You Submit Outside the Window?

  • Too early: portal rejects application.

  • Too late or after arrival: Malaysian immigration may penalize or deny entry at point of entry.

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🧾 Summary

  • Submit MDAC within 72 hours before arrival.

  • Use Malaysia GMT+8 time for calculation.

  • Submit early on Day 2 of the allowed period for best results.

  • An official rejection will occur if you’re too early or too late—so plan carefully.