CSIR-National Physical Laboratory (CSIR-NPL), India’s National Metrology Institute, is responsible for generating and disseminating Indian Standard Time (IST) traceable to Coordinated Universal Time (UTC). To support nationwide synchronization, CSIR-NPL employs multiple time-transfer technologies, including NTP, FonOclock, PTP, White Rabbit, CVGNSS, and TWSTFT. This paper focuses on the design, deployment, and evaluation of cost-effective, Network Time Display (NTD) systems to maintain accurate time across distributed infrastructures using NTP time synchronization. Three deployment models are proposed to address varying institutional needs: direct NTP synchronization, centralized control with Python-based automation, and local NTP server configurations. A real-world deployment at CSIR-NPL demonstrates the system’s functionality, featuring an automated synchronization and alert mechanism developed in Python. Experimental results show a typical RTC drift of 2.65 s per day, with an optimal resynchronization interval of 54 min. A Type B uncertainty budget analysis yields a combined uncertainty of ± 0.622 s (95% confidence, k = 2). The system integrates software, hardware, and network components to ensure continuous monitoring and resilience. This work contributes a scalable framework for time-synchronized campuses and institutions, promoting standardized timekeeping in sectors such as education, finance, transport, and governance.