<Table> <Tr> <Th_colspan="2"> Memorial Day </Th> </Tr> <Tr> <Td_colspan="2"> The gravestones at Arlington National Cemetery are decorated by U.S. flags on Memorial Day weekend in 2008 . </Td> </Tr> <Tr> <Th> Official name </Th> <Td> Memorial Day </Td> </Tr> <Tr> <Th> Observed by </Th> <Td> United States </Td> </Tr> <Tr> <Th> Type </Th> <Td> National </Td> </Tr> <Tr> <Th> Observances </Th> <Td> Remembrance of American soldiers who have died in military service </Td> </Tr> <Tr> <Th> Date </Th> <Td> Last Monday in May </Td> </Tr> <Tr> <Th> 2017 date </Th> <Td> May 29 (2017 - 05 - 29) </Td> </Tr> <Tr> <Th> 2018 date </Th> <Td> May 28 (2018 - 05 - 28) </Td> </Tr> <Tr> <Th> 2019 date </Th> <Td> May 27 (2019 - 05 - 27) </Td> </Tr> <Tr> <Th> 2020 date </Th> <Td> May 25 (2020 - 05 - 25) </Td> </Tr> <Tr> <Th> Frequency </Th> <Td> Annual </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Memorial Day </Th> </Tr>

When do we celebrate memorial day this year
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