Daylight Saving Time

██ DST used

██ DST no longer used

██ DST never used

Daylight saving time (DST; also summer time in British English—see Terminology) is the convention of advancing clocks so that afternoons have more daylight and mornings have less. Typically clocks are adjusted forward one hour near the start of spring and are adjusted backward in autumn. Modern DST was first proposed in 1895 by George Vernon Hudson, a New Zealand entomologist. Many countries have used it since then; details vary by location and change occasionally.

The practice is controversial.Adding daylight to afternoons benefits retailing, sports, and other activities that exploit sunlight after working hours, but causes problems for farming, evening entertainment and other occupations tied to the sun. Traffic fatalities are reduced when there is extra afternoon daylight. its effect on health and crime is less clear. Although an early goal of DST was to reduce evening usage of incandescent lighting, formerly a primary use of electricity, modern heating and cooling usage patterns differ greatly, and research about how DST currently affects energy use is limited and often contradictory.

DST's occasional clock shifts present other challenges. They complicate timekeeping, and can disrupt meetings, travel, billing, recordkeeping, medical devices, heavy equipment, and sleep patterns. Many computer-based systems can adjust their clocks automatically, but this can be limited and error-prone, particularly when DST rules change.

Source : Wikipedia

p/s:

Entomology (from Greek ἔντομος, entomos, "that which is cut in pieces or engraved/segmented", hence "insect"; and -λογία, -logia^[1]) is the scientific study of insects, a branch of arthropodology.

~Pada 24 April 2009, Egypt telah pun bertukar kepada DAYLIGHT SAVING utk tahun 2009. Kalau menurut kata senior2 (bukan Suniyo-doremon), siang akan menjadi lebih panjang berbanding malam. Bagi diri ana, fenomena ini sebenarnya menimbulkan sedikit kekeliruan kerana jam pada handphone awal sejam berbanding jam tgn dgn x semena2nya (Handphone ana time-Autoupdate). Tapi setalah beberapa ketika semuanya kembali okay. Waktu solat bagi setiap waktu juga menjadi lewat satu jam. Cth Subuh : Asal: 3.45 am ; Baru:4.45 am.

Memandangkan siang lebih panjang berbanding malam, terutamanya di dalam fatrah (musim) imtihan nie, masa belajar kita sepatutnya lebih panjang berbanding masa berehat. Jadi, Bertindaklah secepat mungkin. Jadikan ulangkaji kita sbg satu bentuk ibadah kepada ALLAH. Tanam azam utk hadiahkan keterbilangan kita kpd ibu dan ayah. Istiqamah dalam bertawakal. Semoga ALLAH kurniakan kita yang terbaik. BITTAUFIQ WANNAJH~

Wassalam ^_^