Generally speaking, you can't get it the same day. The time for getting a health certificate is different. First of all, because different places, each place has its own time to apply for a health certificate. In some places, the efficiency is relatively high, and the approval time will be faster. In some places, the efficiency is relatively low, and it will take a long time to pass. However, it is usually handled on Monday and Tuesday, and you can get it this Thursday. You can get a health certificate on Wednesday, Thursday and Friday. Generally speaking, it won't take more than a week to get a health certificate. If you are not sure when to get the health certificate in your area, you can look at the announcement in the lobby when you have a physical examination. It will usually be announced. Just pay attention. If you really don't have time to go to the hospital to get a certificate, the hospital will have a more humane choice. You can choose the way of mailing, and you only need to pay the mailing fee.