from datetime import datetime, timedelta
import pytz

EASTERN = pytz.timezone('US/Eastern')

def seconds_to_human_readable(seconds):
    if seconds < 60:
        return f"{seconds}s"
    elif seconds < 3600:
        return f"{seconds // 60}m {seconds % 60}s"
    elif seconds < 86400:
        hours = seconds // 3600
        minutes = (seconds % 3600) // 60
        return f"{hours}h {minutes}m"
    else:
        days = seconds // 86400
        hours = (seconds % 86400) // 3600
        minutes = (seconds % 3600) // 60
        return f"{days}d {hours}h {minutes}m"