<P> South African declaration </P> <Tr> <Td> 1942 - 01 - 19 </Td> <Td> Japan </Td> <Td> Portugal </Td> <Td> </Td> <Td> Portugal maintained neutrality throughout World War II . </Td> <Td> Invasion </Td> </Tr> <Tr> <Td> 1942 - 05 - 05 </Td> <Td> South Africa Netherlands (in - exile) Poland </Td> <Td> Vichy France </Td> <Td> </Td> <Td> </Td> <Td> Invasion </Td> </Tr> <Tr> <Td> 1942 - 05 - 05 </Td> <Td> United Kingdom Northern Rhodesia Southern Rhodesia South Africa Tanganyika Belgian Congo </Td> <Td> Vichy France Japan </Td> <Td> </Td> <Td> </Td> <Td> Invasion </Td> </Tr>

What time did britain declare war on germany