To buy bitcoin doesn't have a perfect time to buy bitcoin but I know that investing in Bitcoin what you to know concerning bitcoin investment is for you to know when you will invest, because probably bitcoin investment is something that someone who have courage can do, and if you're money conscious person you will not think to keep your investment just a few time of investment, don't panic because bitcoin investment know the condition of every cryptocurrency investment.
You are right that investing in bitcoin doesn't have a perfect time, but at some point in your post, you said someone needs to know when to invest in bitcoin, which is not the right thing to say in a thread like this because someone can't figure out the right time to invest in bitcoin, and it will likely make newbies figure out the right time to invest in bitcoin when they are supposed to start their bitcoin investment right away when their accumulation money is readily available. You will not need courage to invest in bitcoin if you invest in bitcoin within your discretionary income or with the money you will not need for 4-10 years or more because you used the money that is not allocated to solve your daily expenses to invest in bitcoin, which will always allow you to invest in bitcoin freely and take care of your daily expenses.
Yes there is no fixed time or perfect time to invest in Bitcoin. If you buy bitcoin today is the best time and if you buy bitcoin tomorrow is the best time for you. The best time to buy Bitcoin is when you get the chance. Although there is no fixed time to buy bitcoins we should buy bitcoins immediately. .We should aim not to delay in buying Bitcoin because the way Bitcoin price is increasing day by day maybe if we don't buy Bitcoin now then we will regret when Bitcoin price increases in future.
However, long-term Bitcoin investments should be planned for at least eight to five years or up to 10 years. The stronger the source of income, the longer the investment. So create a source of income keep some of the money you earn from that source for investment and use the rest for daily expenses.