Howdy,
So if I did my first land crossing in March and second in August, will be able to do another two starting from March next year. Or will I be refreshed with 1 crossing next March and then another next August?
Thank you in advance
TLDR : Answer Summary
The rules for visa exempt land border crossings are based on the calendar year. After your first two crossings in March and August, you would be eligible to cross again starting from January 1 of the following year.