Central clock denotes parent country time in 12 hours.
Outer to central clock is a red coloured rotating ring over which is attached white colour indicator which rotates anticlockwise and helps in family planning to women in reproductive age (normally 15-45 years) by denoting days prone to conceive in alignment to the outer multi coloured ring which is manually adjustable accordingly by individual woman, bringing the start of yellow colour in alignment to indicator at the onset of menstrual cycle.
Green colour of multicoloured outer ring denoted safe days,red colour denotes days prone to conceive while yellow colour denotes duration of menstruation in women having normal periods.
