Joel 2:12-13
12 That is why the LORD says, "Turn to me now, while there is time! Give me your hearts. Come with fasting, weeping, and mourning. 13 Don't tear your clothing in your grief; instead, tear your hearts." Return to the LORD your God, for he is gracious and merciful. He is not easily angered. He is filled with kindness and is eager not to punish you.
NLT

Now is the time to make it right with God. No one knows what is going to happen the next moment, all we need to be sure of is safety which is only in Christ. It doesn't matter if you are a christian or not, the question is do you have the True Faith?