Final answer:
NOTAM times should be expressed in Coordinated Universal Time (UTC) and indicated to the nearest minute for consistent global aviation operations.
Step-by-step explanation:
NOTAM times shall be expressed in Coordinated Universal Time (UTC) and indicated to the nearest minute. This is to ensure standardization and clarity in aviation communications across different time zones.
During global operations such as air traffic control or coordination of flights, UTC is used because it operates under a zero- to 24-hour time system and is not affected by the local time variances.
When rewriting times given with metric prefixes to scientific notation based on the base SI unit of time (the second), the following conversions apply: (a) 980 Ps would be rewritten as 9.8 x 10¹µ s; (b) 980 fs would be rewritten as 9.8 x 10⁻¹µ s; (c) 17 ns would be rewritten as 1.7 x 10⁻¹ s; (d) 577 μs would be rewritten as 5.77 x 10⁻¶ s.