This is taken access.log 21 / Jul / 2019: 00: 00: 00 - 22 / Jul / 2019: 00: 00: 04 to log access.log-2019-07-21
sed -n '/21\/Jul\/2019:00:00:00/,/22\/Jul\/2019:00:00:04/p' access.log > access.log-2019-07-21
This is taken access.log 21 / Jul / 2019: 00: 00: 00 - 22 / Jul / 2019: 00: 00: 04 to log access.log-2019-07-21
sed -n '/21\/Jul\/2019:00:00:00/,/22\/Jul\/2019:00:00:04/p' access.log > access.log-2019-07-21