<Tr> <Td> Python </Td> <Td> datetime. now (). timestamp () </Td> <Td> 1 μs (*) </Td> <Td> 1 January 1970 </Td> </Tr> <Tr> <Td> RPG </Td> <Td> CURRENT (DATE),% DATE CURRENT (TIME),% TIME </Td> <Td> 1 s </Td> <Td> 1 January 0001 to 31 December 9999 </Td> </Tr> <Tr> <Td> CURRENT (TIMESTAMP),% TIMESTAMP </Td> <Td> 1 μs </Td> </Tr> <Tr> <Td> Ruby </Td> <Td> Time. now () </Td> <Td> 1 μs (*) </Td> <Td> 1 January 1970 (to 19 January 2038 prior to Ruby 1.9. 2) </Td> </Tr>

Where is the system clock in a computer