Introduction: A time-motion study helps us to determine the amount of time necessary to perform a specific movement or task. Aims: To determine the activity time at different service delivery points. Methods: The present observational cross-sectional study was done in the immunization clinic of Kalinga Institute of Medical Sciences (KIMS), Bhubaneswar, Odisha, over 2 months from 01/08/2020 to 30/09/2020. The sample size was 327. The study population included the mothers/caregivers attending the immunization clinic with their children. Predesigned and pretested schedules were used to record time and other information, while pre-synchronised stopwatches were used to record the total activity time at various stations of the immunization clinic. Results: The mean total time taken (from entry to exit) for each participant to complete the immunization process was 36.6__ampersandsignplusmn;15.7 minutes. The mean total time was maximum during registration and checking of immunization status, 14.3__ampersandsignplusmn; 6.2 minutes. This was followed by the mean time for vaccination proper which was 10.8__ampersandsignplusmn;4.5 minutes. The highest number of beneficiaries visiting the immunization clinic was on Wednesday and the mean total time at all service delivery points was maximum on Wednesday (42.5__ampersandsignplusmn;19.8 minutes) between 10 am - 12 pm. Conclusion: Time management at all levels of the health care system is the need of the hour which has to be addressed. Efficient functioning of the immunization clinic is therefore required to achieve the goal of universal immunization. Conclusions: In this study, there was a statistically significant correlation between IDA and simple FS.