What happens if my visa expires during a public holiday in Thailand and I can't renew until the next business day?

The question involves concerns about a visa expiring just before a public holiday, preventing the individual from renewing it in time. Responses from the community suggest that usually, if a visa expires on a holiday and the individual visits the immigration office the next business day, the overstay fine might be waived. The standard fine for overstaying is 500 THB per day, but due to the holiday, there are indications that this may not be enforced. Some commenters stress the importance of keeping track of visa expiry dates to avoid last-minute issues.