The best replacement for birth date is due date.

The best alternatives to birth date are rated as following:
★★★★★  due date
★★★★  birthdate
★★★★  birthday
★★★★  date of birth

Your alternative for birth date is not listed? Suggest!
Speaking about birth date, one probably shouldn't forget about numerology.

Other search terms related to birth date and their ratings are:
★★★★★ numerology
★★★★ horoscope
★★★ personality
You have in mind a companion for birth date and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of birth date in all years. Click on graph for more.
birth date
due date
birthdate