Regardless of the type of tampon used,

it should not be worn for more than8hours,and it is recommended to change it every2~4hours for daytime use.

When changing tampons, it's helpful to check these two things:
Is there still a lot of white on the tampon? If so, a low-absorbent spec should be considered.
Is there any blood on the panties? If so, a higher absorbency specification should be considered, or change it more frequently.
Most of the users can master their own specifications and changing time after two to three use cycles,and achieve a balance of safety and comfort.