rclone perseveres mod-time for s3 backends
https://rclone.org/s3/#modified-time
https://rclone.org/s3/#update-and-use-server-modtime
you can see the mod-time like so.
rclone lsf wasabi01:veeam.br/en07 --format=pt -R
rclone/backup/EN07/EN07.vbm;2020-08-08 10:29:24
rclone/backup/EN07/EN072020-03-14T104230.vbk;2020-03-14 11:25:54
rclone/backup/EN07/EN072020-04-04T095550.vbk;2020-04-04 10:34:42
rclone/backup/EN07/EN072020-05-02T095339.vbk;2020-05-02 10:34:37