Below is the date of Sultan of Selangor’s Birthday on year 2023 and 2024.
| Year | Date | Day | Holiday | States |
|---|---|---|---|---|
| 2021 | 11 Dec | Sat | Sultan of Selangor's Birthday | Selangor |
| 2022 | 11 Dec | Sun | Sultan of Selangor's Birthday | Selangor |
| 2022 | 12 Dec | Mon | Sultan of Selangor's Birthday (Replacement Holiday) | Selangor |
| 2023 | 11 Dec | Mon | Sultan of Selangor's Birthday | Selangor |
Every 11st December is a public holiday in Selangor for Sultan of Selangor’s Birthday.