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If you heard a siren at 6:20pm on Sep. 15, 2021, don't panic - Mothership.SG - News from Singapore, Asia and around the world
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One-minute islandwide siren to sound at 6.20pm to mark Total Defence Day on Feb 15 | The Straits Times
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SG】Kids Alarm Clock Digital with Snooze Night Light Timed Dimmable Light Desk Clock Perfect Gift for Kids/Children | Shopee Singapore
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SCDF to sound 'important message' signal through PWS siren on Total Defence Day - Connected To India News
What's that sound? | PWS2022 | “What's that sound?”🤔 Has this thought ever crossed your mind, or do you know someone who has asked a similar question upon hearing the sounding of
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