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#ifndef _TZFILE_H
#define _TZFILE_H
#define SECSPERDAY (60*60*24)
#define DAYSPERNYEAR 365
#define DAYSPERLYEAR 366
#define isleap(y) (((y) % 4) == 0 && ((y) % 100) != 0 || ((y) % 400) == 0)
#endif
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