The Australian High Commission in New Delhi will be closed on:
| Date | Day | Event | Holiday |
| 1 January 2018 | Monday | New Year’s Day | Australian |
| 26 January 2018 | Friday | Australia Day/Republic Day | Australian/Indian |
| 2 March 2018 | Friday | Holi | Indian |
| 30 March 2018 | Friday | Good Friday | Australian/Indian |
| 2 April 2018 | Monday | Easter Monday | Australian |
| 25 April 2018 | Wednesday | ANZAC Day | Australian |
| 11 June 2018 | Monday | Queen's Birthday | Australian |
| 15 August 2018 | Wednesday | Independence Day | Indian |
| 23 August 2018 | Thursday | Id Ul Zuha | Indian |
| 2 October 2018 | Tuesday | Mahatma Gandhi's Birthday | Indian |
| 19 October 2018 | Friday | Dussehra | Indian |
| 7 November 2018 | Wednesday | Diwali | Indian |
| 25 December 2018 | Tuesday | Christmas Day | Australian/Indian |
| 26 December 2018 | Wednesday | Boxing Day | Australian |