The survey found hat women aged 30 to 34 had the least time to themselves - about 33 minutes a day - while those older than 40 had the most at 45 minutes.
A poll of 1000 women with children aged 16 and younger conducted by Galaxy Research, for Procter and Gamble, also found mothers spend two hours and 20 minutes a day solely on childcare, outside of work and other household commitments.
The majority said they felt isolated, while more than half felt guilty trying to reach a balance between work and raising children. The guilt was most acute among mothers of children aged three to five.
Unlike their mothers, young women are waiting up to a decade before they marry and when they do, they want a wealthy man and a ritzy wedding.
Parenting expert and author Pinky McKay said mothers felt increasing pressure to work a "double shift" both at home and at work.
"Often they are afraid to reach out and ask for help because there is this perception that everyone else is coping," the Daily Telegraph quoted McKay as saying.