Illinois is in the Central Time Zone in the United States of America (USA). US Central Standard Time (CST) is 6 hours behind Greenwich Mean Time (GMT-6).
Credit Card Account Number Verification - Card Type Identification. This page provides information about identifying a credit card type from a card number's numeric range and number of digits. First digit must be a 3 and second digit must be a 4 or 7. Valid length: 15 digits. First digit must be 3 and second digit must be 0, 6, or 8. Valid length: 14 digits. Valid length: 16 digits.
Best Answer: The first digit is always 3, 4, 5 or 6. Credit card companies use a standardized system of assigning numbers. 3 means it is an American Express or Diners Club credit card. Credit cards beginning with 4 means that it is a Visa card.If your credit card numbers starts with 5 it represents a MasterCard.And in the case of a credit card number beginning with 6, it is a Discover credit card.The other numbers are used to carry various other information.est Answer: The first digit is always 3, 4, 5 or 6. Credit card companies use a standardized system of assigning numbers. 3 means it is an American Express or Diners Club credit card. Credit cards beginning with 4 means that it is a Visa card.