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TDAC Registration Timeline

When and How to Complete Your Digital Arrival Card

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Understanding the 72-Hour Rule

The TDAC registration timeline is governed by the 72-hour rule, which specifies when travelers can complete their digital arrival card. Understanding this timeline is essential for proper travel planning.

Since the implementation of TDAC on May 1, 2025, this timeline has been strictly enforced to ensure data accuracy and system efficiency.

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TDAC Thailand Registration Timeline

TDAC Timeline Rules

Critical timing requirements for TDAC submission

72 Hours Maximum

You can submit TDAC no more than 72 hours (3 days) before your arrival in Thailand.

Too Early = Invalid
Submissions outside this window are automatically rejected.

Optimal Timing

Best time to submit is 24-48 hours before departure for optimal planning.

Recommended Window
Complete when travel plans are confirmed.

Before Boarding

Latest deadline is before boarding your flight to Thailand.

Last Chance
Can complete up to departure time.
TDAC Thailand Timing Examples

Timeline Examples

Practical examples to help you understand the TDAC timing requirements.

✓ Correct Example

Arrival: Monday 3:00 PM
TDAC Submission: Saturday 3:00 PM or later
Result: Valid submission

⚠ Risky Example

Arrival: Monday 3:00 PM
TDAC Submission: Monday 1:00 PM
Result: Very last minute but valid

✗ Invalid Example

Arrival: Monday 3:00 PM
TDAC Submission: Thursday 2:00 PM
Result: Too early - submission rejected

Special Circumstances

Timeline considerations for special travel situations

Time Zone Considerations

  • Use Thailand time (ICT/UTC+7) for calculations
  • Account for time differences when traveling
  • Consider flight duration and connections
  • Plan for potential flight delays

Flight Changes

  • Update TDAC if flight changes significantly
  • Minor schedule changes usually acceptable
  • Date changes require new TDAC submission
  • Keep original confirmation until travel
Important: If your travel plans change significantly, submit a new TDAC application with updated information rather than risk entry complications.
TDAC Thailand Special Timing

Consequences of Missing the Timeline

Understanding what happens if you don't follow the timeline requirements

No TDAC Completion
  • Potential entry denial at immigration
  • Delays at immigration checkpoints
  • Additional questioning by officers
  • Possible return to origin country
Late Submission
  • Rush to complete before boarding
  • Risk of technical difficulties
  • Stress and time pressure
  • Potential mistakes in application

Don't Wait Until the Last Minute

Complete your TDAC application within the 72-hour window for stress-free travel

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