The postcrossing time is UTC/GMT.
In Germany we currently have UTC/GMT +2, which means that if you draw addresses between 0 am and 2 am local time, they still show the date of the previous day.
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Have a problem when I save my new postal address.
I got a PO Box add several days ago, which is rarely used in China today. For example, I live in a city with 8 million citizens, but only a few dozen new mailboxes are added every year, far less than the number of unsubscribes. In fact, it is now almost exclusively used by specific institutions for a short period of time.
China Post has made it clear that it does not need a postal code now. (What few people know is that at present, there is no need to WRITE a postal code to mail domestic letters in China either) The postal code has not been eliminated, but it is only used for information entry and recognition, and no longer needs to be filled in manually.
Back to my question, the address itself doesn’t have a postal code, but I can’t save it. In addition, there is a special point that the postal code of this city is different from most other cities in China, and it cannot be filled in with the first few digits +000, which cannot be recognized 
So, how do I deal with it?
Actually, PO box add even cannot be recognized in many websites in China, too few users.
Hi @MrSyu!
We understand China Post might have updated guidelines for addressing, but Postcrossing uses the UPU addressing formats for all its addresses. Hopefully this will be updated for China at some point, but for now, please check the UPU recommendations for China — there’s a section about PO box addresses. Here’s what their example looks like:
Ms. YANG Li
P.O. Box 100088-008
100088 BEIJING
P.R. CHINA
Basically, you need to write the postal code and the city in a line below the PO box number, and it’ll be ok!
Hi @meiadeleite
No offense, the meaningful of UPU formats is just the country name at the bottom.
China is not an English-speaking country, and inbound letters need to be translated and recognized before being distributed to the delivery center, at which point the address that has been recorded in the database will take effect. The add without postal code is standard and authoritative.
If PC has staff who are Chinese (not ones only understand Chinese but do not live here), I could cite many examples, 'cause there are a few words that I really don’t know how to put in English 
Hi, new here and this question has probably been answered, however, do I buy postcards from the store and mail, or do I get them off of this site and send them?
Thanks
Sassy tinker
You may get your postcards wherever you choose: shops in your community, thrift stores, online, etc. Some Postcrossers state in their profiles that they welcome handmade postcards or cards printed professionally from your own photographs, and in such cases you’re free to get creative!
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I uploaded the wrong side of the card, the message side, how do I delete/fix this. I’m talking with a child.
Where do you buy the WonderPost postcards with the animals dressed as mail carriers? I tried googling it and found a bunch of websites talking about them but didn’t find any selling them
Hello! I have a card from March 2022 that I’m 99% sure has been registered, however it’s not showing up under Received? Could it have been deleted, or is there someway to check if I missed registering this one? Thanks.
Hi!
You can search the card using the ID-code. If the card has been registered, it shows up. If the search comes up as negative, the card hasn’t been registered.
If you can’t find it under your recd list, then you will not have registered them either, because no registered cards will be deleted.
Thank you! Apparently I missed registering it!
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Are different people allowed to have accounts that use the same address? My sister works at a senior center and is looking to start a program for Postcrossing! Would she just be allowed to make one account in the same way teacher’s do for their classes or would participants be able to make individual accounts that all use the senior center’s address? Thank you in advance for any replies!
Yes, that’s allowed. There are many times where multiple family members live together and each have a Postcrossing account. Some people actually even multiple accounts under the same name at the same address, which is discouraged but not explicitly disallowed.
I would also like to add that the e-mail addresses must be different.
I didn’t receive the postcard. I would like to ask. I changed my address. Domestic letters can be received normally, but I have not received postcrossing letters. Why? Is it necessary to wait for a while before postcrossing will send matching letters after changing the address?
Would you please let us know when you changed your address?
Edit:
I have just seen that you have a sent/received difference of 11. Your last 11 cards were only registered from 18 March - most of them in April.
Since your address only goes out to other users when cards written by you are registered, cards to you should have been travelling for 41 days or less.
It seems to me that you shouldn’t worry about that as cards to China often took a long time.
I would recommend that you wait another 1 or 2 weeks and if no card has arrived then you can contact support 
Contact us
OK, thank you, l wait for a while!
Sorry if I’m posting this in the wrong place:
Is there a way to search for official cards on certain themes? I would like to add some Star Trek cards to my official favorites list, but am having a hard time finding them (for some reason not everyone wants them?! 
).
Alternatively, if you know of any official Star Trek cards, I would love if you would share the link with me, maybe via PM!
Thanks!