compactify time since function
compactify time since function

HMProgrammingClub/NYCSL2,HMProgrammingClub/NYCSL2,HMProgrammingClub/NYCSL2,HMProgrammingClub/NYCSL2,HMProgrammingClub/NYCSL2,HMProgrammingClub/NYCSL2