Caerus

In Greek mythology, Caerus was the personification of opportunity, luck and favorable moments. He was depicted with only one lock of hair. His Roman equivalent was Occasio or Tempus. Caerus is called the youngest child of Zeus.Caerus is the due measure that achieves the aim. This god brings about what is convenient, fit, and comes in the right moment. Sometimes it could be the critical or dangerous moment, but more often Caerus represents the advantageous, or favorable occasion. Hence, what is opportune, or "Opportunity". In the Hellenistic age (as P. Chantraine informs us), the term was also used as "time" or "season" (the good time, or good season).
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[Greek] The Greek personification of the favorable moment, represented bald-headed, with only one lock of hear (meaning: one should seize the opportunity when it presents itself).