Translation of sticker for car

[Vasco]

Hi there! I have these stickers that a friend got for me to put in my car but i have no idea what it means... could you help me please? Thank You

[OracleBone]

Ancient Chinese use these special characters to record a period of time:year, month, day, hour, i.e.

No need to learn the exact means of them. They are very complicated, mysterious, and impractical.

Some people still insist on that these magical things could bring lucky to our people. Just think it as some kind of talismans.

[BrandeX]

My gf didn't immediately recognize these, thinking at first they might be a Japanese version (kanji), but if it is chinese, it is very old pictographs, and seem to relate to the time of your birth she said. As for the one that is a picture of a japanese flag with 2 characters on it, that reads "May" (as in the month).

[Lu]

Except for the first character, that is a more complicated way of writing '5', the others are all heavenly stems and/or earthly branches, I'm not sure which, maybe both. These are characters used to indicate the year, and also other things to do with time, I suppose. Try googling 'heavenly stems and earthly branches' for more details.

[fireball9261]

伍 is the formal writing for the number 5 when you write on checks or debt notes, and it doesn't mean May (unless that is a Japanese word for May).

The rest are all units for indicating Chinese years, months, and days. They are called tian gan 天干and di zhi 地支. The arrangement here are a random mix of tian gan 天干and di zhi 地支, and they don't seem to mean anything. Also, I have no idea why there is a 伍 on top of the vertical line as well as the center of the horizontal line. In addition, I don't understand why 庚 was seperated out by itself at the right and left of the horizontal line.

They are definitely not indicating your birthday. In order to represent year, month,day, and time, they must be paired with tian gan first and followed by di zhi. The list of tian gan and di zhi are as below, and you can see that this is a random mix of both without any order.

天干（tian gan): 甲、乙、丙、丁、戊、己、庚、辛、壬、癸

地支(di4 zhi):子、丑、寅、卯、辰、巳、午、未、申、酉、戌、亥

Since there is a Japanese flag there, I would think it might mean something to the Japanese, but I can't think of any sense for this design outside of being an art design. Personally, I wouldn't use it as a tailsman due to the chaotic arrangement of the tian gan and di zhi. It gave me an upsetting feeling.

[Vasco]

Thank you so much for your help!

Best Regards

Vasco