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We all know that time-travel can be tricky when calendar systems

change; switching from Julian to Gregorian was bad enough, but there

are leap-seconds, "there is no year 0", and other annoyances, even

without jumping to Hebrew, Islamic, Chinese, or less well-known dating

systems. And so, for all you prospective time-travellers, I offer this

possibility for thought: Instead of worrying about all of the above,

simply count the number of seconds from a well-defined reference point

- let us say, the first man-made nuclear blast at Trinity.

Also, I'm attaching a few oddly standard time periods; I checked with

Google, and it seems I'm the first person to ever write 'exaweek'

online.

Trinity Reference Time:

Monday, July 16, 1945

05:29:45 Mountain War Time (11:29:45 Greenwich)

-432,300,000,000,000,000 T: 13,700,000,000 BC (Big Bang)

-315,564,829,000,000,000 T: 10,000,000,000 BC

-144,200,000,000,000,000 T: 4,570,000,000 BC (Earth formed)

-113,600,000,000,000,000 T: 3,600,000,000 BC (First life)

-31,556,538,200,000,000 T: 1,000,000,000 BC

-19,000,000,000,000,000 T: 600,000,000 BC (Multicellular animals

appear)

-7,131,800,000,000,000 T: 226,000,000 BC (Sun made one revolution

around galaxy)

-3,155,709,040,000,000 T: 100,000,000 BC

-2,067,000,000,000,000 T: 65,500,000 BC (K-T Extinction)

-631,190,900,000,000 T: 20,000,000 BC (First forms of grass appear)

-315,626,132,000,000 T: 10,000,000 BC

-157,843,748,000,000 T: 5,000,000 BC (Humans and chimpanzees split)

-31,617,840,600,000 T: 1,000,000 BC

-22,150,897,600,000 T: 700,000 BC (Reversal of Earth's magnetic field)

-18,995,249,900,000 T: 600,000 BC (Humans able to produce sounds of

spoken language)

-9,528,306,870,000 T: 300,000 BC (Homo sapiens seperates from Homo

erectus)

-4,794,835,350,000 T: 150,000 BC (Mitochondrial Eve)

-3,217,011,506,985 T: Jan 1, 100,000 BC

-1,639,187,666,985 T: Jan 1, 50,000 BC

-850,275,746,985 T: 25,000 BC (Neanderthals die out)

-692,493,362,985 T: Jan 1, 20,000 BC

-440,041,548,585 T: Jan 1, 12,000 BC

-376,928,594,985 T: Jan 1, 10,000 BC (Beginning of neolithic)

-358,941,403,209 T: 9,430 BC (End of ice age)

-313,815,641,385 T: 8,000 BC (Jericho founded)

-219,146,210,985 T: Jan 1, 5,000 BC

-187,589,734,185 T: Jan 1, 4,000 BC

-168,655,848,105 T: 3400 BC (Bronze age begins)

-165,500,200,425 T: 3300 BC (Sumerians develop Cuneiform)

-159,188,905,065 T: 3100 BC (Stonehenge construction started.)

-156,033,257,385 T: Jan 1, 3,000 BC

-153,508,739,241 T: 2920 BC (Egyptian Dynasty I)

-142,463,972,361 T: 2570 BC (Great Pyramid built)

-140,255,018,985 T: 2500 BC (horse domesticated in China)

-124,476,780,585 T: Jan 1, 2,000 BC

-118,165,485,225 T: 1,800 BC (Iron age begins)

-92,920,303,785 T: Jan 1, 1,000 BC

-61,363,826,985 T: Saturday, January 1, 1 00:00:00

-61,079,830,185 T: Wednesday, January 1, 10 00:00:00

-58,239,689,385 T: Wednesday, January 1, 100 00:00:00

-29,837,849,385 T: Monday, January 1, 1000 00:00:00

-11,292,953,385 T: Sunday, August 27, 1587 00:00:00 (Last person to

leave Roanoke)

-11,199,036,585 T: Tuesday, August 18, 1590 00:00:00 (Return to empty

Roanoke)

-10,903,289,385 T: Tuesday, January 1, 1600 00:00:00

-10,000,000,000 T: Friday, August 15, 1628 17:43:05

-9,000,000,000 T: Thursday, May 3, 1660 19:29:45

-8,000,000,000 T: Sunday, January 10, 1692 21:16:25

-7,747,529,385 T: Monday, January 1, 1700 00:00:00

-7,000,000,000 T: Thursday, September 19, 1723 23:03:05

-6,000,000,000 T: Thursday, May 29, 1755 00:49:45

-5,000,000,000 T: Sunday, February 4, 1787 02:36:25

-4,592,719,785 T: Wednesday, January 1, 1800 00:00:00

-4,000,000,000 T: Wednesday, October 14, 1818 04:23:05

-3,919,318,185 T: Saturday, May 5, 1821 00:00:00 (Napoleon dies)

-3,000,000,000 T: Saturday, June 22, 1850 06:09:45

-2,000,000,000 T: Tuesday, February 28, 1882 07:56:25

-1,437,046,185 T: Monday, January 1, 1900 00:00:00

-1,169,032,354 T: Tuesday, June 30, 1908 00:17:11 (Tunguska event)

-1,000,000,000 T: Friday, November 7, 1913 09:43:05

-174,828,585 T: Monday, January 1, 1940 00:00:00

-100,000,000 T: Saturday, May 16, 1942 01:43:05

-16,975,785 T: Monday, January 1, 1945 00:00:00

-10,000,000 T: Thursday, March 22, 1945 17:43:05

-1,337,385 T: Sunday, July 1, 1945 00:00:00

-1,000,000 T: Wednesday, July 4, 1945 21:43:05

-100,000 T: Sunday, July 15, 1945 07:43:05

-41,385 T: Monday, July 16, 1945 00:00:00

-10,000 T: Monday, July 16, 1945 08:43:05

-1,000 T: Monday, July 16, 1945 11:13:05

-100 T: Monday, July 16, 1945 11:28:05

-10 T: Monday, July 16, 1945 11:29:35

-1 T: Monday, July 16, 1945 11:29:44

0 T: Monday, July 16, 1945 11:29:45

1 T: Monday, July 16, 1945 11:29:46 (Light from blast has travelled

299,792.458 km.)

10 T: Monday, July 16, 1945 11:29:55

100 T: Monday, July 16, 1945 11:31:25

1,000 T: Monday, July 16, 1945 11:46:25

10,000 T: Monday, July 16, 1945 14:16:25

45,015 T: Tuesday, July 17, 1945 00:00:00

1,000,000 T: Saturday, July 28, 1945 01:16:25

1,341,015 T: Wednesday, August 1, 1945 00:00:00

10,000,000 T: Friday, November 9, 1945 05:16:25

14,560,215 T: Tuesday, January 1, 1946 00:00:00

100,000,000 T: Wednesday, September 15, 1948 21:16:25

140,790,615 T: Sunday, January 1, 1950 00:00:00

500,000,000 T: Saturday, May 20, 1961 12:23:05

579,164,415 T: Friday, November 22, 1963 18:30:00 (JFK assassinated)

800,000,000 T: Saturday, November 21, 1970 17:43:05

900,000,000 T: Tuesday, January 22, 1974 03:29:45

1,000,000,000 T: Thursday, March 24, 1977 13:16:25

1,750,249,815 T: Monday, January 1, 2001 00:00:00

1,883,561,091 T: Wednesday, March 23, 2005, at 22:54:36 UTC

2,000,000,000 T: Sunday, November 30, 2008 15:03:05

3,000,000,000 T: Wednesday, August 8, 2040 16:49:45

4,000,000,000 T: Saturday, April 16, 2072 18:36:25

4,874,387,415 T: Friday, January 1, 2100 00:00:00

5,000,000,000 T: Tuesday, December 25, 2103 20:23:05

6,000,000,000 T: Friday, September 2, 2135 22:09:45

7,000,000,000 T: Monday, May 11, 2167 23:56:25

8,000,000,000 T: Friday, January 18, 2199 01:43:05

8,030,061,015 T: Wednesday, January 1, 2200 00:00:00

9,000,000,000 T: Monday, September 27, 2230 03:29:45

10,000,000,000 T: Thursday, June 5, 2262 05:16:25

33,275,622,615 T: Wednesday, January 1, 3000 00:00:00

64,832,488,215 T: Saturday, January 1, 4000 00:00:00

96,388,965,015 T: Jan 1, 5000 AD

127,945,441,815 T: Jan 1, 6000 AD

159,501,918,615 T: Jan 1, 7000 AD

191,058,395,415 T: Jan 1, 8000 AD

222,614,872,215 T: Jan 1, 9000 AD

254,171,349,015 T: Jan 1, 10,000 AD.

569,736,117,015 T: Jan 1, 20,000 AD

1,516,430,421,015 T: Jan 1, 50,000 AD

3,094,254,261,015 T: Jan 1, 100,000 AD

1.26219768e15 T: 40,000,000 AD (Australia slams into Asia)

7.13170236e15 T: 226,000,000 AD (Solar system makes one revolution

around galaxy)

1.42004084e17 T: 4,500,000,000 AD (Sun becomes red giant)

6.31129475e17 T: 20,000,000,000 AD (Possible 'Big Rip' end of the

universe)

1.32537196e18 T: 42,000,000,000 AD (Earliest possible 'Big Crunch')

3.15564768e21 T: 10^14 AD (End of Stelliferous Age, galaxy and star

formation ceases)

3.15564768e22 T: 10^15 AD (Planets flung from orbits)

3.15564768e23 T: 10^16 AD (Stars flung from orbits)

3.15564768e43 T: 10^36 AD (Half of protons decay)

3.15564768e47 T: 10^40 AD (All protons decay)

3.15564768e157 T: 10^150 AD (All black holes decay)

(Program used: http://www.timeanddate.com/date/duration.html ("The

calculation is performed using USA calendar system, and UTC-time, so

no local time zones or leap seconds is taken into consideration."),

plus a healthy dose of Google Calculator.)

1 second

1.209 seconds = 1 microfortnight.

3.155 seconds = 1 nanocentury.

3.6 seconds = 1 millihour

6 seconds = 1 deciminute

8.64 seconds = 1 myrioday.

10 seconds = 1 decasecond

31.556 seconds = 1 microyear. 1 nanomillenium.

36 seconds = 1 centihour

60 seconds = 1 minute.

60.48 seconds = 1 myrioweek. 1.008 minutes.

86.4 seconds = 1 milliday. 1.44 minutes.

100 seconds = 1 hectosecond. 1.667 minutes.

120.96 seconds = 1 myriofortnight. 2.016 minutes.

315.564 seconds = 1 microdecade.

360 seconds = 1 decihour. 6 minutes.

600 seconds = 1 decaminute. 10 minutes.

604.8 seconds = 1 milliweek. 10.08 minutes.

864 seconds = 1 centiday. 14.4 minutes.

1,000 seconds 1 kilosecond. 16.67 minutes.

1,209.6 seconds = 1 millifortnight. 20.16 minutes.

3,155.647 seconds = 1 myrioyear. 52.594 minutes. 1 microcentury.

3,600 seconds = 1 hour. 60 minutes.

6,000 seconds = 1 hectominute. 1.667 hours.

6,048 seconds = 1 centiweek. 1.68 hours.

8,640 seconds = 1 deciday. 2.4 hours.

10,000 seconds = 1 myriasecond. 2.778 hours.

12,096 seconds = 1 centifortnight. 2.4 hours.

31,556.476 seconds = 1 milliyear. 8.765 hours. 1 micromillenium. 1

myriodecade.

36,000 seconds = 1 decahour. 10 hours.

60,000 seconds = 1 kilominute. 16.667 hours.

60,480 seconds = 1 deciweek. 16.8 hours.

86,400 seconds = 1 day. 24 hours.

120,960 seconds = 1 decifortnight. 1.4 days.

315,564.768 seconds = 1 centiyear. 3.652 days. 1 myriocentury. 1

millidecade.

360,000 seconds = 1 hectohour. 4.167 days.

600,000 seconds = 1 myriaminute. 6.944 days.

604,800 seconds = 1 week. 7 days.

864,000 seconds = 1 decaday. 10 days.

1,000,000 seconds = 1 megasecond. 11.574 days.

1,209,600 seconds = 1 fortnight. 14 days.

2,360,594.88 seconds = 1 sidereal month. 27.321 days.

3,155,647.68 seconds = 1 deciyear. 36.523 days. 1 myriomillenium. 1

millicentury. 1 centidecade.

3,600,000 seconds = 1 kilohour. 41.667 days.

6,048,000 seconds = 1 decaweek. 70 days.

8,640,000 seconds = 1 hectoday. 100 hours.

12,096,000 seconds = 1 decafortnight. 140 days.

31,556,476.8 seconds = 1 year. 365.2 days. 1 millimillenium. 1

centicentury. 1 decidecade.

36,000,000 seconds = 1 myriahour. 1.14079553 years.

60,000,000 seconds = 1 megaminute. 1.90132588 years.

60,480,000 seconds = 1 hectoweek. 1.91653649 years.

86,400,000 seconds = 1 kiloday. 2.73790926 years.

120,960,000 seconds = 1 hectofortnight. 3.83307297 years.

315,564,768 seconds = 1 decade. 10 years. 1 centimillenium. 1

decicentury. 1 decayear.

604,800,000 seconds = 1 kiloweek. 19.1653649 years.

864,000,000 seconds = 1 myriaday. 27.3790926 years.

1,000,000,000 seconds = 1 gigasecond. 31.6887646 years.

1,209,600,000 seconds = 1 kilofortnight. 38.3307297 years.

3,155,647,680 seconds = 1 century. 100 years. 1 decimillenium. 1

decadecade. 1 hectoyear.

3,600,000,000 seconds = 1 megahour. 114.079553 years.

6,048,000,000 seconds = 1 myriaweek. 191.653649 years.

12,096,000,000 seconds = 1 myriafortnight. 383.307297 years.

31,556,476,800 seconds = 1 millenium. 1,000 years. 1 kiloyear 1

hectodecade. 1 decacentury.

60,000,000,000 seconds = 1 gigaminute. 1,901.32588 years.

86,400,000,000 seconds = 1 megaday. 2,737.90926 years.

315,564,768,000 seconds = 1 kilodecade. 10,000 years. 1 hectocentury.

1 myrioyear. 1 decamillenium.

604,800,000,000 seconds = 1 megaweek. 19,165.3649 years.

1,000,000,000,000 seconds = 1 terasecond. 31,688.7646 years.

1,209,600,000,000 seconds = 1 megafortnight. 38,330.7297 years.

3,155,647,680,000 seconds = 1 myriadecade. 100,000 years. 1

kilocentury. 1 hectomillenium.

3,600,000,000,000 seconds = 1 gigahour. 114,079.553 years.

31,556,476,800,000 seconds = 1 mega-annum, 1 megayear. 1,000,000

years. 1 myriacentury. 1 kilomillenium.

60,000,000,000,000 seconds = 1 teraminute

86,400,000,000,000 seconds = 1 gigaday.

315,564,768,000,000 seconds = 1 megadecade. 10,000,000 years. 1

myriamillenium.

604,800,000,000,000 seconds = 1 gigaweek

1,000,000,000,000,000 seconds = 1 petasecond

1,209,600,000,000,000 seconds = 1 gigafortnight

3,155,647,680,000,000 seconds = 1 megacentury. 100,000,000 years.

3,600,000,000,000,000 seconds = 1 terahour

31,556,476,800,000,000 seconds = 1 giga-annum, 1 gigayear.

1,000,000,000 years. 1 megamillenium.

60,000,000,000,000,000 seconds = 1 petaminute

86,400,000,000,000,000 seconds = 1 teraday

315,564,768,000,000,000 seconds = 1 gigadecade

604,800,000,000,000,000 seconds = 1 teraweek

1,000,000,000,000,000,000 seconds = 1 exasecond

1,209,600,000,000,000,000 seconds = 1 terafortnight

3,155,647,680,000,000,000 seconds = 1 gigacentury

3,600,000,000,000,000,000 seconds = 1 petahour

31,556,476,800,000,000,000 seconds = 1 tera-annum, 1 terayear. 1

gigamillenium.

60,000,000,000,000,000,000 seconds = 1 examinute

86,400,000,000,000,000,000 seconds = 1 petaday

315,564,768,000,000,000,000 seconds = 1 teradecade

604,800,000,000,000,000,000 seconds = 1 petaweek

1,000,000,000,000,000,000,000 seconds = 1 zettasecond

1,209,600,000,000,000,000,000 seconds = 1 petafortnight

3,155,647,680,000,000,000,000 seconds = 1 teracentury

3,600,000,000,000,000,000,000 seconds = 1 exahour

31,556,476,800,000,000,000,000 seconds = 1 peta-annum, 1 petayear. 1

teramillenium.

60,000,000,000,000,000,000,000 seconds = 1 zettaminute

86,400,000,000,000,000,000,000 seconds = 1 exaday

315,564,768,000,000,000,000,000 seconds = 1 petadecade

604,800,000,000,000,000,000,000 seconds = 1 exaweek

1,000,000,000,000,000,000,000,000 seconds = 1 yottasecond

1,209,600,000,000,000,000,000,000 seconds = 1 exafortnight

3,155,647,680,000,000,000,000,000 seconds = 1 petacentury

3,600,000,000,000,000,000,000,000 seconds = 1 zettahour

31,556,476,800,000,000,000,000,000 seconds = 1 exa-annum, 1 exayear. 1

petamillenium.

60,000,000,000,000,000,000,000,000 seconds = 1 yottaminute

86,400,000,000,000,000,000,000,000 seconds = 1 zettaday

315,564,768,000,000,000,000,000,000 seconds = 1 exadecade

604,800,000,000,000,000,000,000,000 seconds = 1 zettaweek

1,000,000,000,000,000,000,000,000,000 seconds = 1 xentasecond

1,209,600,000,000,000,000,000,000,000 seconds = 1 zettafortnight

3,155,647,680,000,000,000,000,000,000 seconds = 1 exacentury

3,600,000,000,000,000,000,000,000,000 seconds = 1 yottahour

31,556,476,800,000,000,000,000,000,000 seconds = 1 zetta-annum, 1

zettayear. 1 examillenium.

60,000,000,000,000,000,000,000,000,000 seconds = 1 xentaminute

86,400,000,000,000,000,000,000,000,000 seconds = 1 yottaday

315,564,768,000,000,000,000,000,000,000 seconds = 1 zettadecade

604,800,000,000,000,000,000,000,000,000 seconds = 1 yottaweek

1,209,600,000,000,000,000,000,000,000,000 seconds = 1 yottafortnight

3,155,647,680,000,000,000,000,000,000,000 seconds = 1 zettacentury

3,600,000,000,000,000,000,000,000,000,000 seconds = 1 xentahour

31,556,476,800,000,000,000,000,000,000,000 seconds = 1 yotta-annum, 1

yottayear. 1 zettamillenium.

86,400,000,000,000,000,000,000,000,000,000 seconds = 1 xentaday

315,564,768,000,000,000,000,000,000,000,000 seconds = 1 yottadecade

604,800,000,000,000,000,000,000,000,000,000 seconds = 1 xentaweek

1,209,600,000,000,000,000,000,000,000,000,000 seconds = 1

xentafortnight

3,155,647,680,000,000,000,000,000,000,000,000 seconds = 1 yottacentury

31,556,476,800,000,000,000,000,000,000,000,000 seconds = 1

xenta-annum, 1 xentayear. 1 yottamillenium.

315,564,768,000,000,000,000,000,000,000,000,000 seconds = 1

xentadecade

3,155,647,680,000,000,000,000,000,000,000,000,000 seconds = 1

xentacentury

31,556,476,800,000,000,000,000,000,000,000,000,000 seconds = 1

xentamillenium.

Thank you for your time,

--

DataPacRat