Is it possible to enter Thailand on a DTV visa 4–5 months after it has been issued? Does anybody same experience?) Thank you

Hello, need some advice if I may!

My DTV has been approved for arrival in May, however I wish to go to Thailand earlier will there be an issue if I use it before the date I stated in my application?

Thanks 🙏

Hello, I am applying through the soft power option/ Muay Thai. Does anyone know how soon after entering Thailand the course must start? For example, if a book a course to begin in March, would I be able to enter Thailand a couple weeks before the start date of the course?

Non-Imm O-A Visa: According to the Thai Consulate in NYC website, "Upon arrival, holder of this type of visa will be permitted to stay in Thailand for 1 year from the date of first entry." Does anyone know if there's a time limit from the date of their granting the Visa to the date of first entry? For example, if I received an O-A Visa today, when's the latest that I would need to travel to Thailand? 2 weeks? 1 month? 3 months? 6 months?

Hi Visa Experts, I have three questions... since I just came off a US obtained 60 day tourist visa single entry....it required airline tickets to and from Thailand. Question: it seems airline tickets purchased is not the case for retirement one year non immigrant OA visa that I will obtain from Chicago Consulate...if that is the case does the one year clock start when I enter Thailand and I can use it anytime within the next x days? (60day tourist visa required me to use it within 90 days of obtaining it) Question 2: I hear many talk about the 1 year can be extended easily to two year??? What special timing and exercise would i need to pull off to make that extend for another full year? What I understand is the initial one year only requires 800K equivalent baht in any financial institution (even US based) Question 3: will the 1 year extension require me to have to demonstrate monthly cash flow income levels in a thai bank or can that wait until after the 2 year point?