| Start date | Start time | Title |
|---|
| Tue, 3 Mar 2020 | | World Wildlife Day |
| Sun, 8 Mar 2020 | | International Women's Day |
| Wed, 18 Mar 2020 | | Global Recycling Day |
| Sat, 21 Mar 2020 | | World Down Syndrome Day |
| Sun, 22 Mar 2020 | | World Water Day |
| Sat, 28 Mar 2020 | | Earth Hour |
| Fri, 1 May 2020 | | Labour Day |
Sun, 10 May 2020
to Mon, 11 May 2020 | | Nuzul Al-Quran |
Sun, 24 May 2020
to Tue, 26 May 2020 | | Hari Raya Aidilfitri |
| Sat, 6 Jun 2020 | | Agong's Birthday |
| Fri, 10 Jul 2020 | 8:30pm | PSS2020 Concert: Sing! A Collection of Songs from Movies and Musicals (Show 1) |
| Sat, 11 Jul 2020 | 3:30pm | PSS2020 Concert: Sing! A Collection of Songs from Movies and Musicals (Show 2) |
| Sat, 11 Jul 2020 | 8:30pm | PSS2020 Concert: Sing! A Collection of Songs from Movies and Musicals (Show 3) |
| Sun, 12 Jul 2020 | 3:30pm | PSS2020 Concert: Sing! A Collection of Songs from Movies and Musicals (Show 4) |
| Fri, 31 Jul 2020 | | Hari Raya Haji |
| Thu, 20 Aug 2020 | | Awal Muharram |
| Mon, 31 Aug 2020 | | Merdeka Day |
| Wed, 16 Sep 2020 | | Malaysia Day |
| Thu, 29 Oct 2020 | | Prophet Muhammad's Birthday |
| Sat, 14 Nov 2020 | | Deepavali |
| Sat, 5 Dec 2020 | | PSS2020 Concert: Songs for the Season (Show 1 & 2) |
| Sun, 6 Dec 2020 | | PSS2020 Concert: Songs for the Season (Show 3 & 4) |
| Fri, 11 Dec 2020 | | Sultan of Selangor's Birthday |
| Fri, 25 Dec 2020 | | Christmas Day |
| Fri, 1 Jan 2021 | | New Year's Day |
| Wed, 3 Feb 2021 | | Happy 63rd birthday to The Philharmonic Society of Selangor |
