Network Time Protocol - standard for synchronizing computer clocks over networks. Like having synchronized watches across all computers to ensure accurate timestamps.
Financial trading systems use NTP to ensure all transaction timestamps are perfectly synchronized across global markets.
All major clouds provide managed, highly available NTP endpoints for instances. AWS offers Amazon Time Sync Service (also supports PTP for tighter sync). Google provides Google Cloud NTP. OCI provides an NTP service for OCI resources. Azure commonly relies on Windows Time (w32time) and Azure-hosted NTP endpoints for VMs; it’s typically configured via OS time services rather than a single branded standalone NTP product.