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Network & communications
Glyph
Iconico
Calendar, Agenda, event
Black
1024x1024
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Mixed
Material Core
event
460x512
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iOS7 optimized
Outline
48 Bubbles
Calendar, date, Schedule
512x512
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36 Slim Icons
Schedule, date, Calender
87x87
World Issues
wall clock, Clock, Schedule
time, Wait, Month
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Education & science
Handdrawn
Brainy Icons Free — 36 Science and Education Icons
Wait, timer, hand-drawn
64x64
Mobile apps
Free Retina Icon Set
practice, swim, skill
60x60
Business & finance
48x48 Free Time Icons
festive, Balloon, Holiday
48x48
party, event, Holiday
event, Arrow, party
delete, Close, festive
wall, hour, watch
Balloon, Info, party
party, Holiday, Balloon
festive, event, delete
Arrow, Holiday, party
Balloon, festive, Holiday
Holiday, search, Balloon
party, Balloon, done
UI
Wirecons Free Vector Icons
date, event, Calendar
Flat UI Icons Free
Calendar, date, event
Pixel
IconSweets 2
Presentation, event, flag
40x40
Photorealistic
Mixed Icon Set