Labor leader Jodi McKay has lobbied the NSW government to consider a request made by one of her constituents that daylight saving be shortened to help combat climate change.

In the letter sent by the Strathfield MP to Energy Minister Matt Kean, Ms McKay writes that her constituent "advises that daylight saving time in NSW had made last summer too hot for walking in Hammond Park, her local park, at 8pm as the temperature at that time remained at the 40°C mark".

A man walks across the open space in Hammond Park in Ashfield, Sydney. Credit:Kate Geraghty

"[The constituent] has requested the duration of the daylight saving period in NSW be shortened as it has a significant impact on climate change," Ms McKay wrote on October 11. "I await your consideration and response on this matter."

Daylight saving has been a fraught issue since being introduced in 1971, with multiple referendums in Queensland and Western Australia rejecting the arrangement.