How are local a.m./p.m. and 24-hour times converted to Coordinated Universal Time (UTC)?

Question

How are local a.m./p.m. and 24-hour times converted to Coordinated Universal Time (UTC)?

Accepted Answer

When it comes to converting to specific times, Coordinated Universal Time (UTC) is a “standard.” It is used for a variety of reasons, including certain scientific studies, such as weather forecasting and astronomical data. The following lists several examples of converting local standard time (a.m./p.m. and 24-hour) to UTC time, and local daylight savings time (a.m./p.m. and 24-hour) to UTC:

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How are local a.m./p.m. and 24-hour times converted to Coordinated Universal Time (UTC)?