Winston Peters will officially hand back the reins to the Prime Minister on Wednesday evening.

Peters has just held his final post-cabinet press conference as Acting Prime Minister while Jacinda Ardern has been on maternity leave.

He is travelling to Singapore for an ASEAN forum on Wednesday night.

Ardern will resume her duties when his plane takes off at midnight on Wednesday.

She will travel to Wellington with baby Neve, and partner Clarke Gayford, on Saturday.

 

Ardern has been at home with baby Neve since Neve was born about six weeks ago but is set to return to Parliament next week.

Ardern released a Facebook video on Sunday saying she expected to hit the ground running and would make an employment related announcement in her first full week back.