International GNSS Day 2099

Wednesday, 23 September 2099

International GNSS Day is observed on 23 September to raise awareness of Global Navigation Satellite Systems and their role in navigation, mapping, science, and modern global infrastructure.

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Frequently asked questions

When is International GNSS Day 2099?
International GNSS Day 2099 is on Wednesday, 23 September 2099.
What day of the week is International GNSS Day 2099?
It falls on Wednesday.
How is International GNSS Day calculated?
This event is observed every year on 23 September.