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Automatically calculates the exact time remaining until National Security Education Day on April 15th each year, displaying a live countdown in days, hours, minutes, and seconds.
April 15 is National Security Education Day.
Established in 2015 to raise awareness about national security.
Expiration Date Calculator
Calculate the expiration date based on the production date and shelf life, or check the near-expiry and expired status based on the expiration date.
Bazi to Gregorian Calendar Converter
公历日期与八字四柱双向转换工具，支持紫微派与子平派子时规则，用于命理推算与历法对照。
Age Calculator
Enter your birth date to instantly calculate your exact age, traditional Chinese age, and total days alive, plus find your Chinese zodiac, horoscope, and lunar birthday.
Baby 100 Days Calculator
输入宝宝出生日期，一次查看满月、百日、周岁的公历、农历日期和星期，方便安排庆祝。
Expiration Date Calculator
Calculate the expiration date based on the production date and shelf life, or check the near-expiry and expired status based on the expiration date.
Bazi to Gregorian Calendar Converter
公历日期与八字四柱双向转换工具，支持紫微派与子平派子时规则，用于命理推算与历法对照。
Age Calculator
Enter your birth date to instantly calculate your exact age, traditional Chinese age, and total days alive, plus find your Chinese zodiac, horoscope, and lunar birthday.
Baby 100 Days Calculator
输入宝宝出生日期，一次查看满月、百日、周岁的公历、农历日期和星期，方便安排庆祝。
Lunar and Solar Calendar Converter
A tool for converting dates between the lunar and solar calendars. It supports lunar leap months and is ideal for looking up holidays, birthdays, or historical dates.
Worried about missing the important National Security Education Day? This tool automatically calculates and displays the exact time remaining from the current moment until National Security Education Day on April 15th each year. Established by the National Security Law of the People's Republic of China, this statutory observance is tracked by our tool using the Gregorian calendar. It continuously outputs a live countdown in days, hours, minutes, and seconds to help you plan related activities in advance.
Q: Is the National Security Education Day countdown accurate?
A: Yes. The tool calculates based on your device's local time. As long as your device time is accurate, the result is precise down to the second.
Q: Why does the countdown restart after April 15th?
A: This tool automatically calculates the time remaining until April 15th of the current year. After the observance passes, it automatically calculates the date for the following year, ensuring uninterrupted annual reminders.
The countdown's accuracy depends on your device's time settings. The results only display calculations based on the Gregorian calendar. This tool does not collect any user data, so there are no privacy concerns. If you need to calculate other dates, please use a general countdown tool.
We recommend using this tool a week before promotional activities in educational institutions or enterprises. It can be paired with the "view next year's countdown" feature for long-term planning. Typical example: Opening the tool at 10:00 AM on April 10th will display "4 days, 14 hours, XX minutes, and XX seconds remaining".
