Grafana's time range selector is a crucial feature for visualizing time series and logs, allowing users to choose between absolute, relative, and semi-relative time ranges. Semi-relative time ranges, which combine a fixed start time with a relative "now" end time, are particularly useful for monitoring events that happen over time while retaining historical context. Two practical applications of this feature include troubleshooting infrequent issues, such as random reboots in a network device, and real-time monitoring of metrics updated during specific work hours, like tracking Firefox tab usage throughout a business day. These semi-relative time ranges enable users to efficiently analyze data trends over extended periods without losing sight of the entire history or wasting screen space on irrelevant data. The article encourages exploration of Grafana's flexible visualization capabilities and invites users to share their own experiences and suggestions for using semi-relative time ranges.