柬埔寨电子签证：30天停留期与3个月有效期详解（针对澳大利亚人）
3个月有效期是从签发日期开始您必须入境柬埔寨的时间窗口。30天停留期是从入境日期开始您可以在该国境内的期限。两个不同的计时器，两个不同的截止日期——以下是让您茅塞顿开的澳大利亚人实例计算。
What's the difference between the 3-month validity and the 30-day stay on a Cambodia eVisa?
Validity is the 3-month window from the issue date during which you must enter Cambodia — miss it and the visa is void. Stay is the 30-day window from your actual entry date during which you can be inside Cambodia. They are two different clocks. A Cambodia eVisa issued on 1 April is valid until 1 July (you must arrive by then). If you arrive on 25 June, your 30-day stay runs from 25 June and ends on 24 July — even though that is past the validity end date, which is fine because validity only controls entry, not the stay itself.
要点总结
- Validity = the 3-month window from issue date during which you must ENTER Cambodia. If you do not enter by the validity end date, the visa is void and you start again.
- Stay = the 30 days from your entry date during which you can be IN Cambodia. The 30-day clock starts on the date the immigration officer stamps you in, not on the issue date.
- Worked example: visa issued 1 April, validity expires 1 July, you arrive 25 June, stay until 24 July — both windows respected.
- The two clocks run independently. You can enter on the last day of validity and still get the full 30-day stay from that entry date.
- Single entry means one bite of the 30 days. Leaving and returning on the same visa is not possible — you would need a fresh Cambodia eVisa.
- Tourist auto-extension ended November 2025. If your in-country plan is even potentially longer than 30 days, the Business eVisa is the only sensible class to start on.
Why Aussies get the validity-vs-stay distinction wrong
This guide walks through what each window actually controls, the worked examples that make it click for Aussie travellers, and the edge cases where the two clocks interact. If you only need the headline answer, the Cambodia tourist eVisa specialist guide and the Cambodia visa types explained piece cover the validity and stay rules per class. The processing-time guide explains how the 3-business-day approval slots into the three-month validity, and the application walkthrough is the step-by-step. The Cambodia visa for Australians hub covers cost, documents, and processing time in one canonical write-up.
Validity: the 3-month window to ENTER Cambodia
Stay: the 30 days you have INSIDE Cambodia
Tourist auto-extension ended in November 2025, so the 30-day Tourist stay is now a hard cap with no in-country extension. The Business eVisa is the only class that can be extended in-country in 1, 3, 6, or 12-month blocks. If your in-country plan is even potentially longer than 30 days, the Business eVisa for Australians is the right starting class. The 12-month extension guide and the extension-vs-fresh-eVisa decision piece cover what happens when 30 days is not enough.
常见问题解答
Does the 30-day stay have to fit inside the 3-month validity window?
No. The 30-day stay is locked to your actual entry date, not to the validity end date. If your visa is valid until 1 July and you enter on 30 June, your 30-day stay runs from 30 June to 29 July — even though that ends 28 days past the validity date, you are entirely legal. Validity only controls when you must arrive; once you have arrived, the stay clock is independent.
When does the 30-day stay actually start?
The 30-day stay starts on the date the immigration officer at KTI, SAI, or KOS stamps your passport — your physical entry date — not the issue date on the PDF and not the date you booked the flight. Day 1 is the day you walk through the immigration desk. Day 30 is the last legal day in-country. Day 31 is overstay. There is no grace period for arriving late at night or for time-zone weirdness — the date stamped is the date that counts.
Can I apply for my Cambodia eVisa 6 months before my trip to be safe?
No — that is the most common Aussie mistake. The 3-month validity means the visa would expire before you arrive. The Aussie sweet spot is to apply 2-4 weeks before your flight. That puts the 3-business-day approval comfortably inside the validity window and gives you margin for any free resubmission if Immigration flags a correction. Applying earlier than 90 days out wastes the visa.
What happens if I miss the 3-month validity window?
The eVisa is void. There is no refund, no rollover, and no extension to the validity itself. You apply for a fresh Cambodia eVisa, pay again ($80 USD / ~$122 AUD for Tourist, $90 USD / ~$137 AUD for Business), and wait another 3 business days for approval. The free resubmission feature applies to corrections during the original application, not to expired-validity visas. Set a calendar reminder for the validity end date if your trip dates are flexible.
What happens if I overstay the 30-day in-country window?
Overstay fines apply from day 31 onward, charged at the airport on the way out, payable in USD cash. The fines escalate the longer you overstay, and a longer overstay also triggers an immigration record flag that can affect future Cambodia visa applications. The Cambodia overstay-fines recovery guide for Australians has the current fee structure. The fix is almost always to extend before day 30 — but only Business eVisas can be extended in-country, since Tourist auto-extension ended in November 2025.
Can I leave Cambodia mid-trip and come back on the same eVisa?
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