<Table> <Tr> <Th colspan="2"> Central Time Zone ( North America ) </Th> </Tr> <Tr> <Td colspan="2"> Regions in the Central Time Zone prior to 2015 ( Quintana Roo is now in the Eastern Time Zone ) </Td> </Tr> <Tr> <Th colspan="2"> UTC offset </Th> </Tr> <Tr> <Th> CST </Th> <Td> UTC − 6 : 00 </Td> </Tr> <Tr> <Th> CDT </Th> <Td> UTC − 5 : 00 </Td> </Tr> <Tr> <Th colspan="2"> Current time ( Refresh the clock . ) </Th> </Tr> <Tr> <Th> CDT </Th> <Td> 12 : 43 pm on May 30 , 2018 </Td> </Tr> <Tr> <Th> CST </Th> <Td> 11 : 43 am on May 30 , 2018 </Td> </Tr> <Tr> <Th colspan="2"> Observance of DST </Th> </Tr> <Tr> <Td colspan="2"> DST is observed in certain regions of this time zone between the 2nd Sunday in March and the 1st Sunday in November . </Td> </Tr> <Tr> <Th> DST began </Th> <Td> Mar 11 , 2018 </Td> </Tr> <Tr> <Th> DST ends </Th> <Td> Nov 4 , 2018 </Td> </Tr> </Table>
when do we change from cst to cdt
between the 2nd Sunday in March and the 1st Sunday in November