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Warning: in_array() [function.in-array]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'UTC' for 'GMT/0.0/no DST' instead in /home/archwayp/public_html/chinesegendercalendar.info/GenderCalc.php on line 244 Warning: in_array() expects parameter 2 to be array, null given in /home/archwayp/public_html/chinesegendercalendar.info/GenderCalc.php on line 244 ERROR: The entered values are not valid for prediction. |
The Chinese Gender Calendar, also known as the Chinese Birth Gender Chart, is considered one of the oldest methods for predicting the gender of an unborn baby. It is also one of the simplest, where the only necessary information is the mother's age at conception along with month of conception. To the rationally minded, such predictions may seem absurd, but the question is: do we really understand the subtle operations of nature and the universe? At ChineseGenderCalendar.info we are confident that the original calendar, used in the correct way, was a precision tool (like acupuncture) and that the accuracy in ancient China was near 100%. Today, several different versions of the calendar are circulating on the internet and probably as many instructions for how to use them. Many sources are claiming to have calendars that are more than 90% accurate, but we have not been able to verify any such claims. Our goal and the very reason for launching this website, is to go beyond speculations, restore the facts and reach 100% accuracy again. Based on statistical methods we have tested various existing versions of the calendar and selected the most accurate. You find the calendar under the 'Usage' tab, along with instructions for how to use it. By following our instructions you will currently achieve an accuracy of about 75% (i.e. the chance is 3 out of 4 that you will get the gender you want). The figure is nowhere near 100%, but is based on systematic research rather than rumors and speculations. Our objective is to improve the calendar, mainly by collecting and analyzing prediction data from around the world. You can join our effort by testing the calendar on known births in your family and among friends and taking part in our survey. We have detailed instructions for how to use the calendar (under the 'Usage' tab) and an explanation for how this apparently simple tool can be used to predict gender (under the 'Theory' tab). You may find it helpful to view that information for getting more out of the Chinese Gender Calculator hereunder. Once you understand the principles of using the calendar the calculator is a convenient tool for making fast and easy predictions. |
Usage instructions The Chinese Gender Calculator lets you predict and plan gender without knowing how to use the calendar at all. The script will warn you if the chosen conception date is not suitable for gender selection. |
Steps: 1. Enter the mother's date of birth 2. Select whether you want to use 'conception date' or 'baby's birthday' 3. Enter the date corresponding to your choice in 'step 2' |
* If you want to base the calculation on the baby's birthday you must provide the calculator with the normal date of birth (i.e. 9 months from conception); not the actual date. If for example the birth took place 2 weeks early, you should add 14 days to the actual date of birth. |

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