I am the first on Earth , the second in Heaven . I appear two times in a week you can only see me once in a year . Although I am in the middle of the sea , l am not found in month , but l am in February , June , September , October , November & December . What am I ?
Should I join Amazon hiring event next week if I am going to be ready to solve algo-questions only next month -LRB- now only 50 % chance -RRB- or wait for now ?