Anyone who invest on Bitcoin should have a target of when it will sell its bitcoin and also when it will purchase new one, I don't be curious to sell my bitcoin, I only sell my bitcoin when I feel like selling my bitcoin, so we don't have a specific time you can sell off your bitcoin, selling your bitcoin its based on your decision and what you have in mind to sell your coins.

For the aspect of purchasing coins most especially bitcoin, it's obvious and understanding that the appropriate period to purchase bitcoin is when we are in dip, people who have their funds accumulate bitcoin with the period of dip seasons, so it's good to have your funds intact so that you will purchase when the needful arises.