Change A Light Day is an annual campaign that encourages people to switch to energy-efficient light bulbs in order to save energy, reduce greenhouse gas emissions and lower electricity bills.
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#ChangeALightDay
Change A Light Day is celebrated annually on the first Sunday in October.
| 2024 | October 6 | Sunday |
| 2025 | October 5 | Sunday |
| 2026 | October 4 | Sunday |
| 2027 | October 3 | Sunday |
| 2028 | October 1 | Sunday |
| 2029 | October 7 | Sunday |
| 2030 | October 6 | Sunday |
| 2031 | October 5 | Sunday |
| 2032 | October 3 | Sunday |
| 2033 | October 2 | Sunday |
| 2034 | October 1 | Sunday |
| 2035 | October 7 | Sunday |
