Where can I see how long all the instances take in Amazon Cloud ec2? is it more than 750hrs per month?

I have opened multiple instances, but closed several more. Where can I see the usage time of all the instances?

Mar.14,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1bdc0f5-1380b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bdc0f5-1380b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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