Tourist Visa 30 day extension days calculation

[ngz]

I entered Phuket on a Tourist Visa on 15 Jul 2017 with the Admitted Until date being 12 Sep 2017.
I went and got a 30 day extension, and I assumed it would be 30 days added to the 12th Sep, i.e. until the 12th October, however I just checked it and realised its marked as 11th Oct 2017.
Is this correct or an admin error? 
I checked some stamps from a year ago and another from 2 years ago, both for 30 day extension, and in the past it was 30 additional days not including the original "admitted until" date, so it seems like an admin error but not sure. Based on these previous visits, I would have thought it should be until the 12th Oct.
(Example from a previous trip, Tourist Visa Admitted Until 23rd April 2016, 30 day extension was until 23 May 2016)

My flight is booked already for the 12th October. Do you think I will have any trouble with immigration/overstay when departing from Phuket airport? 
I'd prefer not to get an overstay fine, or even an overstay stamp (I heard I could still get a stamp even if the fine is waived for only 1 day overstay) etc as we spend a few months in Thailand each year.
If it is indeed incorrect, should I try get it amended to the 12th? Could this be done at the airport on the day or would I have to visit immigration again?
 

Thanks,

[Maestro]

Theoretically, the extension should have been until 12 October, ie 30 days after 12 September. You would have to go to the immigration office where you got the extension to get it corrected.

[Peter244]

30 days is 29 nights so the way they calculate it and have done for several years is correct. Suggest u contact them or you may get a fine which will not help future applications

[nasa123]

Here you have a good calculation link fore 30 - 60 and 90 days.

 

https://www.travelblog.org/Cool-Stuff/visa-calculator.php

[jackdd]

When departing from an airport the first day of overstay is free.

You get a stamp in the passport, but it's not an actual overstay stamp but the stamp you will get in the passport says that you left late, but not more than 24 hours. I got this once, took maybe an extra 2 minutes to process, and never had a problem with it.

[darrendsd]

1 hour ago, Peter244 said:

30 days is 29 nights so the way they calculate it and have done for several years is correct. Suggest u contact them or you may get a fine which will not help future applications

30 days is 29 nights? How did you work this out exactly? And no they have never calculated it like that, most people realize that each day has a night

 

They have miscalculated it, it should be 12 October

 

He won't get a fine for one day if leaving from the Airport

[murraynz]

i overstayed once, by 30 days, paid the fine without any reprimand..done several entries since then,without problem,also,have now obtained non o retirement visa,without problem

[DefaultName]

6 minutes ago, darrendsd said:

30 days is 29 nights? How did you work this out exactly? And no they have never calculated it like that, most people realize that each day has a night

 

They have miscalculated it, it should be 12 October

 

He won't get a fine for one day if leaving from the Airport

As it was explained to me, it is not 30 x 24 hour periods, any part of a day counts as a day.  so (say) you arrived at 23:59 on the 12th and left at 00:01 on the 13th, that's 2 days.

[darrendsd]

4 minutes ago, DefaultName said:

As it was explained to me, it is not 30 x 24 hour periods, any part of a day counts as a day.  so (say) you arrived at 23:59 on the 12th and left at 00:01 on the 13th, that's 2 days.

That's not the OP's situation, I suggest you read his post again

[jackdd]

You all have a passport with probably many stamps in it so you can check it by yourself, you don't have to argue here

I just did it, i have many 30 day stamps / extensions, so it's easy to see.

 

For the visa exemption:

If the month where i arrived has 31 days it was the day i arrived minus two days in the next month. If the month has 30 days it's the day i arrived minus one day in the next month.

So, for example: Arrived 10.01. (January has 31 days) stay until 08.02. Arrive 10.04. (April has 30 days), stay until 09.05.

Every single of the stamps in my passport, received at various immigration points has exactly this number of days.

You can also just look up "thailand visa exemption passport" on google image search to check it. There is even one picture which shows 01.01. to 30.01. which makes it quite clear that the first day and the last day counts as a whole day.

 

For the extension:

Last year i had a visa until 25.09. which was extended to 25.10. so i assume the day doesn't count twice, and it should have been the 12th for op.

You can search for "thailand visa extension passport" on google image search to get some more stamps, and it seems to be indeed like this, so the scheme for an extension would be: If the month when you get the extension has 31 days it's the next month minus one day, if the month has 30 days it the same day in the next month.

 

[tigermoth]

As others have said their calculation is correct according to the incorrect way they calculate dates where they count the 12th as day 1. I had similar problems when I had a 6 month contract with a private company and when I was told my contract had expired 1 month early I had to sit down and explain, month by month how it wasn't due to expire for another month.

[Mattd]

6 minutes ago, jackdd said:

So 12th September to 11th October is correct in case of the op, it's just one day, no problem as i posted before.

Not so sure that this is correct, 12th September to 12th October is 30 days if you do not include the 12th.

I might be wrong, but as the OP is stamped in to Thailand on his original entry until 12th September, then surely his extension should start on 13th September, unlike the original entry, where the 30 days does include the day of entry.

[jackdd]

4 minutes ago, Mattd said:

Not so sure that this is correct, 12th September to 12th October is 30 days if you do not include the 12th.

I might be wrong, but as the OP is stamped in to Thailand on his original entry until 12th September, then surely his extension should start on 13th September, unlike the original entry, where the 30 days does include the day of entry.

Yes, you are right, before i was too stupid to read it properly. So yes, it should be the 12th, i edited my post before accordingly

[darrendsd]

7 minutes ago, tigermoth said:

As others have said their calculation is correct according to the incorrect way they calculate dates where they count the 12th as day 1. I had similar problems when I had a 6 month contract with a private company and when I was told my contract had expired 1 month early I had to sit down and explain, month by month how it wasn't due to expire for another month.

They don't calculate it like that and they never have

 

Use the date checker another poster has provided above

[jackdd]

2 minutes ago, darrendsd said:

Use the date checker another poster has provided above

The date checker is wrong for Thailand, it always shows one day too much

[Maestro]

2 hours ago, jackdd said:

You can also just look up "thailand visa exemption passport" on google image search to check it. There is even one picture which shows 01.01. to 30.01. which makes it quite clear that the first day and the last day counts as a whole day.

 

The stamp with the dates 01 JAN and 30 JAN you mention is an arrival stamp, as you said, not an extension stamp.

 

Looking at an extension stamp alone does not help to determine how the ending date of the 30-day extension is calculated. One must see also the ending date of the original permission to stay, ie the UNTIL date on the arrival stamp.

 

Perhaps some members who arrived with a tourist visa and got a 30-day extension will be so kind as to post both their arrival stamp and their extension stamp.

[Suradit69]

If his permission to stay ran through 12th Sept., the first day of the extension would be 13th Sept. So that would be day one plus 29 more days which would end on 12 Oct.

 

Possibly the officer who did the calculation mistakenly thought September had 31 days.

 

Usually when tourists miscalculate they take the first day of the extension and add 30 days to that in their head and think the officer made a mistake. In this case, if all the information given in the O/P is accurate, it was the officer who miscalculated.

 

Regardless of how the discussion on TV goes, the only definitive answer would be obtained if the O/P took his passport to the immigration office and calmly asked if it shouldn't be 12th October. Not a big deal. They should correct it.

 

 

 

 

[darrendsd]

2 hours ago, jackdd said:

The date checker is wrong for Thailand, it always shows one day too much

Is that a joke or are you just unable to do simple maths?

[Maestro]

4 hours ago, nasa123 said:

Here you have a good calculation link fore 30 - 60 and 90 days.

 

https://www.travelblog.org/Cool-Stuff/visa-calculator.php

 

This topic is about the calculation of the ending date of an extension of stay. The web page to which you gave a link does not serve this purpose, it is for calculating the ending date of the permission to stay given upon entering the country and therefore is off-topic here.

[Maestro]

Removed three off-topic posts.

 

Further posts not related to the extension calculation will be removed without comment.

[jackdd]

10 minutes ago, darrendsd said:

So you entered on 20 Sep and your departure date is 19 October, that is 30 days, not 29

 

11 days in September including the day you entered and 19 days in October makes 30 days

 

The extension of stay 30 days works in exactly the same way

You recommended to use the date checker website somebody posted before. I said the date checker is wrong. Then you said i'm too stupid to do simple math.

So you want to tell me the date checker website is right and people should use it? Obviously it's wrong by one day. (For Thailand and Laos)

[VBF]

3 hours ago, Maestro said:

 

Perhaps some members who arrived with a tourist visa and got a 30-day extension will be so kind as to post both their arrival stamp and their extension stamp.

Happy to oblige @Maestro

Please see my post from earlier this year along with the attachment

 

So I arrived 24th Jan - original permission to stay until 24th March 2017

Visited Jomtien immigration on 14th March 2017

Applied for and received extension until 23rd April 2017 (IE 30 days after my original permission to stay would have expired)

 

 

[darrendsd]

2 hours ago, jackdd said:

You recommended to use the date checker website somebody posted before. I said the date checker is wrong. Then you said i'm too stupid to do simple math.

So you want to tell me the date checker website is right and people should use it? Obviously it's wrong by one day. (For Thailand and Laos)

I was replying to your comment "So 12th September to 11th October is correct in case of the op, it's just one day, no problem as i posted before" along with your other post that the checker was one day out, together it makes out you are calculating 29 days

 

As I can see the checker is out by forward 1 day