Sources: The Nation and Thailand public holidays. Earlier today (Bangkok time), the government of Thailand's cabinet officially declared a one-off public holiday on Monday, August 20, 2007. The Finance Ministry and the Bank of Thailand will meet later to decide whether markets and banks will remain open on that day.
Background: in our news story of August 4, we announced that it was likely that Monday, August 20, 2007, be declared a one-off public holiday in Thailand to allow people time to travel back to their place of employment, after traveling to their place of voter registration (often quite different) for the Sunday August 19 referendum.
Update (August 8, Bangkok Post): Finance Minister, Chalongphob Sussangkarn, said all financial institutions would be open on Monday, August 20, 2007, as would banks, as the Thai Bankers Association, when consulted by the Minister, said it was preferable they remain open as they had not made preparations for a bank holiday.