Visitor Visa Query

[define]

Hi,

Does anyone have visitor visa granted for 6 months when applying for inviting family members on convocation?

Regards,
Define

 

[2b.or.not.2b]

My parents and sister were granted a multiple entry visa till the validity of their passport which is valid up to 2027 for purpose of attending my convocation.
On arrivng in Canada their passport weren't stamped which meant they could have stayed for 6 months if they so wished.

 

[nmatter]

In my case my passport was stamped by officer but No date mention there , what’s that mean ?

how much duration I have for stay? I have visit visa (V-1) with multiple entry till 2023