<Tr> <Th_colspan="2"> General typography </Th> </Tr> <Tr> <Td> ampersand </Td> <Td> & </Td> </Tr> <Tr> <Td> asterisk </Td> <Td> * </Td> </Tr> <Tr> <Td> at sign </Td> <Td> @ </Td> </Tr>

What is the abbreviation for minutes and seconds