display-time.rkt (303B)
1 #lang racket/base 2 (require racket/date) 3 4 (provide display-time) 5 6 (define (display-time) 7 (define now (seconds->date (current-seconds))) 8 (printf "[~a] The time is now ~a\n" 9 (parameterize ([date-display-format 'iso-8601]) 10 (date->string now #t)) 11 (date->string now #t)))