Everywhere i checked, the duration of this visa is 3 months.
But what is 3 months? Is it from, for example, 3 january to 3 april? Or is there a duration in days, like 90ish days?
I need this information for booking plane tickets.
"Three months" means three calendar months, as per section 29 of the Interpretation Act 1999:
month means a calendar month
How many days the three months represent (89 to 92 days) will depend on the number of days the actual months concerned have.