Here is the complete list of Japanese boy names with most common kanji (Japanese characters) used, and name meanings: 1  AKI meaning bright / autumn (æ / ç§) - Japanese unisex name. 2  AKIHIRO meaning great brightness (æå®) - Japanese boy name. 3  AKIO meaning bright man (æ­å¤«) - Japanese boy name. MASA meaning just / true (æ­£ / ç) - Japanese unisex name. 2  MASAAKI meaning pleasing brightness (è¯æ­) - Japanese boy name. 3  MASAHIKO meaning righteous boy (æ­£å½¦) - Japanese boy name. 4  MASAHIRO meaning great prosperity (æå®) - Japanese boy name.
Age Calculator. This is an age calculator based on the date of birth and the date to be calculated at. This calculator gives out age in years, months, weeks, days, hours, minutes, and seconds.n this system, age grows at the birthday. For example, the age of a person that has lived for 3 years and 11 months is 3 and the age will turn to 4 at his/her next birthday one month later. Most western countries use this age system.
1 Last Menstrual Period: Using the first day of your last menstrual cycle, gestational age can be determined (plus or minus 2 weeks.) The doctor adds 280 days to the first day of your last menstrual cycle to determine a due date.2  Based on that number and todayâs date, gestational age is estimated. Last Menstrual Period: Using the first day of your last menstrual cycle, gestational age can be determined (plus or minus 2 weeks.) The doctor adds 280 days to the first day of your last menstrual cycle to determine a due date.