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Mixed
Outline
World Issues
time, Wait, Month
Black
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Glyph
Octicons
Calendar
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gcons
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UI
Freecns Cumulus
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Education & science
Handdrawn
Brainy Icons Free — 36 Science and Education Icons
Wait, timer, hand-drawn
64x64
Computer & hardware
Ionicons
WPZOOM Developer Icon Set
Smooth
Tango Icon Library
office, Calendar
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Mobile apps
Free Retina Icon Set
Moon, web, Calendar
60x60
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Photography & graphic design
3D
32x32 Free Design Icons
quarter, half, lunar
32x32
Business & finance
48x48 Free Time Icons
Moon, lunar, Calendar
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Wirecons Free Vector Icons
date, event, Calendar
Pittogrammi
Calendar, date
Desktop apps
Ourea Icons
256x256
Social media
Facebook SVG icons
Calendar, Events
Flat UI Icons Free
Calendar, date, event
Picol Vector
Eightyshades
E-commerce & business icons
Metro UI Dock
Mb, Calendar
Mimi Glyphs
16x16
IcoMoon