Function format_time_long 

pub fn format_time_long(seconds: f64) -> String

Format time in seconds to HH:MM:SS or MM:SS display string

Automatically chooses format based on duration:

• Less than 1 hour: Returns MM:SS format
• 1 hour or more: Returns HH:MM:SS format

Arguments

• seconds - Time in seconds

Returns

Formatted string like “1:23:45” or “3:45”

Example

let short = format_time_long(225.0);  // "3:45"
let long = format_time_long(5025.0);  // "1:23:45"