Time, Holidays, Units of Measurement


Thai Time Units   *   Holidays   *   Units of measurement   *   History of world time

Time in Thailand

The year 2008 in Thailand is 2551, like the year 2007 was 2550. Thailand uses Buddhist Era (B.E.) dates, not Christian dates (A.D.). To translate between the two, just add/subtract 543.

Thailand's Buddhist Era years are one year behind that of Myanmar (Burma) and Sri Lanka, where the year is 2544. (The Western Christian world had a similar situation until it synchronized years in 1592, thanks to Pope Gregory XIII's imposition.) The Thai New Year date change now occurs on January 1, not April 13 (the date Buddha attained enlightenment, "Songkran"), but the latter is still the festive Thai "New Year" long holiday.

The time zone in Thailand is +7 Greenwich Mean Time (GMT). If you're like most people, you may find it straining to know the time zone in other countries and cities, e.g., for phone calls and bank transactions. Windows 95+ has built-in time zones for other parts of the world, available by a right mouse click on the time on the bottom right of your Windows screen, then choose Adjust Time/Date, then choose the Time Zone tab (just view, don't change, of course). However, after doing mental arithmetic, many people still forget if we're X hours ahead or X hours behind our associates. A solution is either a time zone wheel, or a software timezone program listing the cities of key associates and the times there, or my preference: wwp.greenwichmeantime.com/time-zone/ (assumes your PC's clock is accurate and your time zone set properly).

Keep in mind that the day will end in Tokyo and New Zealand before Thailand, and the sun rises here before it does in Europe or America. In fact, if you send international courier shipments to the U.S., you will be able to send them "faster" than you will receive them. For example, when it's high noon Tuesday in Thailand, it's midnite Monday-Tuesday in Washington, D.C., and the 9pm summertime sun is setting on Monday in California.

Thais keep track of the time of day differently than foreigners, and people sometimes miss appointments due to miscommunications. It's not common in Bangkok professional circles any more, but it does happen on occasion, especially with Thais who are new to foreigners. The Thais split up the day into four 6-hour sectors, whereby "two o'clock" could mean 8:00am, 2:00pm, 8:00pm or 2:00am.

The best way to prevent this is by specifying the time clearly in one of the languages, e.g., either "2 o'clock p.m.", or military time ("naleeka") 14:00, or "two o'clock in the afternoon" (in Thai, "bai song mohng"). It may be best to use the Thai language if you can, because Thais who are unaccustomed to English may get their English mixed up and say "in the afternoon" when they mean "at night" or "in the morning".

While I don't want to exaggerate potential time-of-day problems, I do know a remarkable number of people who have experienced this on occasion, in addition to a few of my own unfortunate experiences. Thus, the following table is offered for reference, with the time of day in the Thai language:

European time

Thai visualization

spoken Thai

Military time

12:00 midnite

midnite in Thai mind

tian khun

yee sip see naleekah

24:00

1:00 am

1:00 in Thai mind

tee nung

nung naleekah

1:00

2:00 am

2:00 in Thai mind

tee sawng

sawng naleekah

2:00

3:00 am

3:00 in Thai mind

tee saahm

saahm naleekah

3:00

4:00 am

4:00 in Thai mind

tee see

see naleekah

4:00

5:00 am

5:00 in Thai mind

tee ha

ha naleekah

5:00

6:00 am

6:00 in Thai mind

hok mong chao

hok naleekah

6:00

7:00 am

1:00 in Thai mind

nung mong chao or
jet mong chao

jet naleekah

7:00

8:00 am

2:00 in Thai mind

sawng mong chao

pahdt naleekah

8:00

9:00 am

3:00 in Thai mind

saahm mong chao

kow naleekah

9:00

10:00 am

4:00 in Thai mind

see mong chao

sip naleekah

10:00

11:00 am

5:00 in Thai mind

ha mong chao

sip et naleekah

11:00

12:00 noon

half-day in Thai mind

tawn tian

sip sawng naleekah

12:00

1:00 pm

1:00 in Thai mind

bai mong

sip saahm naleekah

13:00

2:00 pm

2:00 in Thai mind

bai sawng mong

sip see naleekah

14:00

3:00 pm

3:00 in Thai mind

bai saahm mong

sip ha naleekah

15:00

4:00 pm

4:00 in Thai mind

bai see mong

sip hok naleekah

16:00

5:00 pm

5:00 in Thai mind

ha mong yen

sip jet naleekah

17:00

6:00 pm

6:00 in Thai mind

hok mong yen

sip pahdt naleekah

18:00

7:00 pm

1:00 in Thai mind

thum nung

sip kow naleekah

19:00

8:00 pm

2:00 in Thai mind

sawng thum

yee sip naleekah

20:00

9:00 pm

3:00 in Thai mind

saahm thum

yee sip et naleekah

21:00

10:00 pm

4:00 in Thai mind

see thum

yee sip sawng naleekah

22:00

11:00 pm

5:00 in Thai mind

ha thum

yee sip saahm naleekah

23:00

12:00 pm

midnite in Thai mind

tian khun

yee sip see naleekah

24:00

In addition to the regular numbers in the military time column, some of the other words above will also be recognized by anyone who lives here a while, due to multiple usage. For example:

naleeka = clock
mong = hour
tawn chao = morning
tawn bai = afternoon
tawn yen = late afternoon, as yen means cool

tawn khun = nighttime, and is not used in clock talk. khun nee = tonite, wan nee = today

Office hours usually start from 8:30-9:00am, with a one hour lunchtime usually starting between 12:00 and 12:30, and you should be able to catch people back in the office from 1:30 until somewhere between 4:30 and 5:30pm. Most government offices close at 4:30, and many will close their doors from newly arriving people at 3:30. Banks run from 9:30 to 3:30.

Restaurants usually take their last orders between 10pm and 11:30pm, though some stay open very late if not 24 hours (one of the real nice things about Bangkok). Western fast food places close earlier than in the west, often 9:30 to 10:00pm.

By law, entertainment places are supposed to close at 2am, and the vast majority do so. Unfortunately, many lively discotheques and other popular places don't get going until around 11pm. This is reflected in their clientele.

For more information on operating hours of some specific services, e.g., for different kinds of buses, please visit the appropriate pages here on ThailandGuru.com

Be careful about wall clocks you buy in Thailand. Most keep accurate time, but some do not. What I do is synchronize them with my watch at the start, and then see how much they drift over time. As for the accuracy of your watch, you can synchronize and re-check it every evening at 6pm when all the radios and TV stations, and most soundovers in public places, play the national anthem. This is usually preceeded by beeps for the last few seconds before 6:00:00.

Holidays

A list of the national work holidays is given below. However, the exact day of the year of some of these will vary, as noted. The ones affected are those based on the lunar calendar, rather than the 365-day solar calendar. Lunar calendar events usually come on a full moon.

Before Thailand (and many western civilizations) switched to the solar 365-day calendar, a lunar calendar was used, whereby one month, or moonth, was 29 or 30 days, e.g., full moon to full moon (29.5 days). Since a solar year is not exactly 12 moonths, there is a shift from year to year between the lunar and solar calendar dates. Notably, the Thai lunar holidays that are in common with Chinese holidays and the holidays of other past lunar calendar cultures may not coincide with each other on the same date, because there are variations in the different implementations of the ancient lunar calendars.

(The moon orbits the Earth in 29.5 days. The Earth orbits the sun in 365¼ days. The February 29 leap year is due to that ¼ day. Western civilizations in ancient times also used various lunar calendars like eastern ones, whereby a leap year happened once every three years by adding an extra month instead of an extra day. When the west standardized upon a solar calendar, the 12 moonths were stretched longer than one moon cycle by an extra day or two, i.e., 30 or 31 days, so that 12 moonths added up to 365 days.)

National Workday Holidays (and a few non-holiday events)

Traditional

Workday

Name

Brief description

Govt

Banks

Co.

April 6, 2011
Solar

Wed

Chakri Day

Commemorates the founding of the current royal lineage in 1782

closed

closed

closed

April 13, 2011
Solar

Wed

Songkran

Thai Buddhist New Year and water festival

closed

closed

closed

April 14, 2011
Solar

Thu

Songkran

Thai Buddhist New Year and water festival

closed

closed

closed

April 15, 2011
Solar

Fri

Songkran

Thai Buddhist New Year and water festival

closed

closed

closed

May 1, 2011
Solar

Mon 2

Labor Day

just like other countries' Labor Day

closed

closed

closed

May 5, 2011
Solar

Thu

Coronation Day

The anniversary of the King's coronation.

closed

closed

closed

May 9, 2011
Solar

Mon

Royal Ploughing Day

Royal ceremonies comprising of the royal plough that is Buddhist ritual as in Sukhothai Age.

closed

open

open

May 17, 2011
Lunar

Tue

Visakha Puja Day

Commemorates the birth, Enlightenment and death of the Buddha. This is the holiest of holydays.

closed

closed

closed

July 1, 2011
Solar

Fri

mid-year accounting

mid-year accounts closing day

open

closed

some

July 15, 2011
Lunar

Fri

Khao Phansaa
(Buddhist Lent)

The start of a 3 month period of the rainy season when monks stay inside the wats, and the preferred day for young men to enter the monkhood or their traditional short period as a monk.

closed

closed

closed

August 12, 2011
Solar

Fri

HM the Queen's Birthday,
National Mother's Day

National Mother's Day in Thailand coincides with the birthday of Queen Sirikit

closed

closed

closed

October 23, 2011
Solar

Mon 24

Chulalongkorn Day

Commemorates the death of King Chulalongkorn (1868-1910), the most revered past king.

closed

closed

closed

November 10, 2011
Lunar

Thu

Loy Kratong

Not a holiday but a major nighttime event nationwide. Water goddess day. Thais prepare and float "kratongs" under the moonlight.

open

open

open

December 5, 2011
Solar

Mon

HM the King's Birthday
National Father's Day

National Father's Day in Thailand coincides with the birthday of King Bhumibol Adulyadej

closed

closed

closed

December 10, 2011
Solar

Mon 12

Constitution Day

closed

closed

closed

December 31, 2011
Solar

Sat

New Years Eve

closed

closed

closed

January 1, 2012
Solar

Sun

New Years Day

closed

closed

closed

January 2, 2012
Solar

Mon 2

New Years Day

workday substitution for weekend holiday

closed

closed

closed

January 3, 2012
Solar

Tue 3

New Years Day

workday substitution for weekend holiday

closed

closed

closed

February 7, 2012
Lunar

Tue

Magha Puja Day

Commemorates when 1,250 of Buddha's disciples spontaneously gathered to hear the Buddha preach. Merit-making ceremonies at temples, candlelight processions at night.

closed

closed

closed

February 21, 2012
Lunar

Tue

Chinese New Year

This is NOT a holiday in Thailand, but many Chinese people will take the day off, and probably Friday the 8th, too.

open

open

open

April 6, 2012
Solar

Fri

Chakri Day

Commemorates the founding of the current royal lineage in 1782

closed

closed

closed

April 13, 2012
Solar

Fri

Songkran

Thai Buddhist New Year and water festival

closed

closed

closed

April 14, 2012
Solar

Sat

Songkran

Thai Buddhist New Year and water festival

closed

closed

closed

April 15, 2012
Solar

Sun

Songkran

Thai Buddhist New Year and water festival

closed

closed

closed

April 16, 2012
Solar

Mon 16

Songkran

workday substitution, Thai Buddhist New Year and water festival

closed

closed

closed

April 17, 2012
Solar

Tue 17

Songkran

workday substitution, Thai Buddhist New Year

closed

closed

closed

May 1, 2012
Solar

Tue

Labor Day

just like other countries' Labor Day

closed

closed

closed

May 5, 2012
Solar

Mon 7

Coronation Day

The anniversary of the King's coronation.

closed

closed

closed

May 9, 2012
Solar

Wed

Royal Ploughing Day

Royal ceremonies comprising of the royal plough that is Buddhist ritual as in Sukhothai Age.

closed

open

open

June 4, 2012
Lunar

Mon

Visakha Puja Day

Commemorates the birth, Enlightenment and death of the Buddha. This is the holiest of holydays.

closed

closed

closed

July 1, 2012
Solar

Mon 2?

mid-year accounting

mid-year accounts closing day

open

closed

some

August 2, 2012
Lunar

Thu

Khao Phansaa
(Buddhist Lent)

The start of a 3 month period of the rainy season when monks stay inside the wats, and the preferred day for young men to enter the monkhood or their traditional short period as a monk.

closed

closed

closed

August 12, 2012
Solar

Mon 13

HM the Queen's Birthday,
National Mother's Day

National Mother's Day in Thailand coincides with the birthday of Queen Sirikit

closed

closed

closed

October 23, 2012
Solar

Wed 24

Chulalongkorn Day

Commemorates the death of King Chulalongkorn (1868-1910), the most revered past king.

closed

closed

closed

November 28, 2012
Lunar

Wed

Loy Kratong

Not a holiday but a major nighttime event nationwide. Water goddess day. Thais prepare and float "kratongs" under the moonlight.

open

open

open

December 5, 2012
Solar

Wed

HM the King's Birthday
National Father's Day

National Father's Day in Thailand coincides with the birthday of King Bhumibol Adulyadej

closed

closed

closed

December 10, 2012
Solar

Mon

Constitution Day

closed

closed

closed

December 31, 2012
Solar

Mon

New Years Eve

closed

closed

closed

January 1, 2013
Solar

Tue

New Years Day

closed

closed

closed

February 10, 2013
Lunar

Sun

Chinese New Year

This is NOT a holiday in Thailand, but many Chinese people will take the day off, and probably Friday the 8th, too.

open

open

open

March 11, 2013
Lunar

Mon

Magha Puja Day

Commemorates when 1,250 of Buddha's disciples spontaneously gathered to hear the Buddha preach. Merit-making ceremonies at temples, candlelight processions at night.

closed

closed

closed

In addition to holidays, there are holydays and festivals which are not countrywide work-free days. So consider these:

  • That Kathin - the end of the rainy season, and when laypeople give new robes to the senior monks and members of the sangha

  • Several agricultural based rituals, e.g., to call upon the spirits to bring good rains, or based around planting and harvest times

Units of Measurement

Thailand is a metric country, having converted many, many years ago, with a few exceptions, mainly in the measurement of land and property (which is understandably difficult to change), and in weighted amounts of gold.

Land is measured in "rai", which is now set as follows:

    1 rai = 1600 square meters (think of 40m x 40m, for example, or 100m x 16m) = 4 ngaan
    1 ngaan = 400 square meters (think of 20m x 20m, for example) = 100 waa
    1 waa = 4 square meters (think of 2m x 2m, for example)

There are two other land & property measurements to be aware of. 1 rai is split up into 4 ngaan, which makes a ngaan equal to 400 square meters. One waa is equal to 4 square meters, so that a ngaan is equal to 100 waa.

Thais originally had their own measuring system for sizes and distances, but this has been entirely abandoned for the metric system.

As for foreign units of measure, here are some useful conversion rates:

  • 1 hectare = 2.471 acres (a hectare is a hectometer) = 6.25 rai
  • 1 acre = 4,840 square yards, or 43,560 square feet = 160 square rods = 2.53 rai

  • 1 inch = 2.54 cm

Weights of gold is measured in "baht", which has a different meaning than the currency "baht" but is pronounced the same.

    1 baht of gold = 15.2 grams

Gold is practically always sold in units of baht rather than in metric measurements. This "baht" has no relation to the current value of the currency.

Other measuring units, mostly obsolete, include yote, kabiet ... tanan ...


The rest of this page is nonvital information, which simply may be of interest historically.

Evolution of Human Time

Historically, it's unclear who split time into 24 hours, but it was probably the ancient Babylonians who liked multiples of 12 because the number 12 is divisible by almost half the numbers below it, i.e., 1, 2, 3, 4, and 6. They liked 60 (which happens to be the number of minutes in an hour), because it's divisible by both 10 and 12. (Practically everywhere in the world, people use base 10 because our species has 10 fingers on our hands.) The Babylonians are also where we get 360 degrees of a circle (60 x 6 x 10) and similar measurements. The Babylonian civilization was an irrigating, wealthy class civilization located between the Tigris and Euphrates Rivers in present day southern Iraq from about 7500 years ago to present, though written language and science started to fluorish about 5500 years ago. Water clocks based on dripping water and the water level of a bowl go back to 5500 years ago in Babylonia, Egypt and China (3500 B.C.).

In tropical parts of the world, the day was split between daytime and nighttime, with the zero hour happening at sunrise and sunset. In Europe, a very northern latitude, this caused a problem due to the seasonal variations between length of day (especially in "the land of the midnite sun" as you can imagine), so the zero hour was shifted to midnite and noon.

In Medieval Europe just over 600 years ago (late 1300's A.D.), mechanical clock technology arose among the French, English and Dutch, around the same time that the Europeans started sailing around the world, starting with Henry the Navigator of Portugal (port). Maritimers spread the midnite 12 hour clock. (Why it's not a noontime zero-hour clock, to synchronize with the sun, I don't know.)

In 1884, the Greenwich Observatory in Greenwich, England, became the reference point for time zones, "Greenwich Mean Time (GMT)", later called Universal Time (UT). (The Greenwich Observatory was created in 1675 as an astronomical telescope observatory based upon the design of the Italian astrophysicist Galileo.) All of Thailand is +7 GMT, which means that when it's 4:00 in England, it's 4:00 +7 = 11:00 in Bangkok.

Sometime, somehow, the Thais developed a hybrid clock of 6 hour intervals, sunrise to noon to sunset to midnite. This is usually attributed to the custom of village watchmen using wooden clackers to signal each hour. Any unexpected clacking or the absence of the clacking was a signal of trouble.

How far back in time this six hour cycle goes, and whether this is the entire story of the six hour period, is a topic that Thai historians may be able to shed some light upon. Old Thai and Khmer ruins have sun clocks in their architecture, from shadows and holes, and of course plenty of old written laws and codes cast in stone going back to over 2000 years ago.




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