After Shutdown Not Synchronize Time

[karan369]

Read RTC chip date and time
ds1302_get_utc
RPi date and time (UTC) to RTC chip
ds1302_set_utc

All working fine, After shutdown not synchronise with time. Time running from shutdown time

sudo date -s ./ds1302_get_utc (this is not work....)
date: invalid date ‘./ds1302_get_utc’