Best emojis for alarm⏰🚨⏲️🔔

(click emoji to copy)

⏰
alarm clock
time, wake up, schedule, reminder, moment
🚨
police car light
siren, alert, warning, urgent, revolving, emergency, rotating light, beacon, crisis, alarm, security system, critical
⏲️
timer clock
countdown, time, alarm, moment
🔔
bell
ring, sound, notification, alarm, chime, alert, reminder, Merry Christmas, Xmas, tone, audio, sound on