PNG ICO ICNS MORE
Mixed
Flat
Things
date, hour, stopwatch
MediumAquamarine
512x512
Business & finance
Winter Lollipop
Alarm, date, Clock
SkyBlue
374x374
PNG MORE
Krispicons- Modern Flat Icons Freebie
timer, Horn, Alert
Purple
111x111
PNG SVG MORE
Sports & awards
theSquid.ink 40
notification, christmas, Alarm
SandyBrown
352x512
PNG ICO ICNS SVG MORE
Fire
bell, danger, problem
Crimson
fire, Alert, warning
Social media
Social Media
ring, Alarm, bell
Gold
Desktop apps
Graficheria
Clock, Wait, time
OldLace
2133x2133
Photography & graphic design
Flatified
time, hour, hours
Orchid
iconsimple (freebies)
timer, Alarm, watch
WhiteSmoke
Plex for Android
Alarm
DarkGray
96x96
UI
Flat UI Free
Alarm, time, Clock
MediumSeaGreen
200x200