| Date | Weekday | Event | Country | Type |
|---|---|---|---|---|
| 21 Mar | Friday | Mother's Day | Not public | |
| 21 Mar | Friday | Harmony Day | Australia More... | Not public |
| 21 Mar | Friday | Second Day of the Spring Festival | Azerbaijan More... | Public |
| 21 Mar | Friday | Iranian New Year's Day | Iraq , Iran , Kyrgyzstan , Turkmenistan , UzbekistanMore... | Public |
| 21 Mar | Friday | Mother's Day | Kuwait More... | Not public |
| 21 Mar | Friday | Nauryz | Kazakhstan More... | Public |
| 21 Mar | Friday | Independence Day | Namibia More... | Public |
| 21 Mar | Friday | Truant's Day | Poland More... | Not public |
| 21 Mar | Friday | Persian New Year's Day | Tajikistan More... | Public |
| 21 Mar | Friday | Human Rights Day | South Africa More... | Public |
| 21 Mar | Friday | World Down Syndrome Day | global | Other |