You can get 2nd dose of the vaccine ANYTIME after the minimum time interval has elapsed
Sinopharm – 3 weeks
Sinovac and Astrazeneca- 4 weeks
No need to wait for reminder SMS from 1166 ( that comes after 6 weeks for Sinopharm and Sinovac and after 12 weeks for Astra Zeneca)
Get Yourself Vaccinated, Stay Safe and Healthy!